Reco: Add cov setters for ind. elements

[f3sch]

Adds individual setters for the cov. matrix and initialisation from pointers.

[github-actions]

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async-2024-ppRef-apass1
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[alibuild]

Error while checking build/O2/fullCI_slc9 for 5f7e8a1 at 2025-12-15 13:37:

## sw/BUILD/O2-latest/log
/sw/SOURCES/O2/14924-slc9_x86-64/0/DataFormats/Reconstruction/include/ReconstructionDataFormats/Vertex.h:49:3: error: unknown type name 'INVALID_TRIGGER_ERROR_NO_HOST_CODE'
/sw/SOURCES/O2/14924-slc9_x86-64/0/DataFormats/Reconstruction/include/ReconstructionDataFormats/Vertex.h:49:10: error: constructor cannot have a return type
/sw/SOURCES/O2/14924-slc9_x86-64/0/DataFormats/Reconstruction/include/ReconstructionDataFormats/Vertex.h:145:82: error: no matching constructor for initialization of 'VertexBase'
/sw/SOURCES/O2/14924-slc9_x86-64/0/DataFormats/Reconstruction/include/ReconstructionDataFormats/Vertex.h(51): error: calling a __device__ function("o2::math_utils::detail::GPUPoint2D<float, (int)0> ::SetX(float)") from a __host__ function("VertexBase") is not allowed
/sw/SOURCES/O2/14924-slc9_x86-64/0/DataFormats/Reconstruction/include/ReconstructionDataFormats/Vertex.h(52): error: calling a __device__ function("_ZN2o210math_utils6detail10GPUPoint2DI1?L1?0EE4SetYE1?") from a __host__ function("VertexBase") is not allowed
/sw/SOURCES/O2/14924-slc9_x86-64/0/DataFormats/Reconstruction/include/ReconstructionDataFormats/Vertex.h(53): error: calling a __device__ function("_ZN2o210math_utils6detail10GPUPoint3DI1?L1?0EE4SetZE1?") from a __host__ function("VertexBase") is not allowed
ninja: build stopped: subcommand failed.

Full log here.

[alibuild]

Error while checking build/O2/fullCI_slc9 for 4b45691 at 2025-12-15 15:11:

## sw/BUILD/O2-latest/log
/sw/SOURCES/O2/14924-slc9_x86-64/0/DataFormats/Reconstruction/include/ReconstructionDataFormats/Vertex.h(50): error: calling a __device__ function("o2::math_utils::detail::GPUPoint2D<float, (int)0> ::SetX(float)") from a __host__ __device__ function("VertexBase") is not allowed
/sw/SOURCES/O2/14924-slc9_x86-64/0/DataFormats/Reconstruction/include/ReconstructionDataFormats/Vertex.h(51): error: calling a __device__ function("_ZN2o210math_utils6detail10GPUPoint2DI1?L1?0EE4SetYE1?") from a __host__ __device__ function("VertexBase") is not allowed
/sw/SOURCES/O2/14924-slc9_x86-64/0/DataFormats/Reconstruction/include/ReconstructionDataFormats/Vertex.h(52): error: calling a __device__ function("_ZN2o210math_utils6detail10GPUPoint3DI1?L1?0EE4SetZE1?") from a __host__ __device__ function("VertexBase") is not allowed
/sw/SOURCES/O2/14924-slc9_x86-64/0/DataFormats/Reconstruction/include/ReconstructionDataFormats/Vertex.h(50): error: calling a __device__ function("o2::math_utils::detail::GPUPoint2D<float, (int)0> ::SetX(float)") from a __host__ __device__ function("VertexBase") is not allowed
/sw/SOURCES/O2/14924-slc9_x86-64/0/DataFormats/Reconstruction/include/ReconstructionDataFormats/Vertex.h(51): error: calling a __device__ function("_ZN2o210math_utils6detail10GPUPoint2DI1?L1?0EE4SetYE1?") from a __host__ __device__ function("VertexBase") is not allowed
/sw/SOURCES/O2/14924-slc9_x86-64/0/DataFormats/Reconstruction/include/ReconstructionDataFormats/Vertex.h(52): error: calling a __device__ function("_ZN2o210math_utils6detail10GPUPoint3DI1?L1?0EE4SetZE1?") from a __host__ __device__ function("VertexBase") is not allowed
/sw/SOURCES/O2/14924-slc9_x86-64/0/DataFormats/Reconstruction/include/ReconstructionDataFormats/Vertex.h(50): error: calling a __device__ function("o2::math_utils::detail::GPUPoint2D<float, (int)0> ::SetX(float)") from a __host__ __device__ function("VertexBase") is not allowed
/sw/SOURCES/O2/14924-slc9_x86-64/0/DataFormats/Reconstruction/include/ReconstructionDataFormats/Vertex.h(51): error: calling a __device__ function("_ZN2o210math_utils6detail10GPUPoint2DI1?L1?0EE4SetYE1?") from a __host__ __device__ function("VertexBase") is not allowed
/sw/SOURCES/O2/14924-slc9_x86-64/0/DataFormats/Reconstruction/include/ReconstructionDataFormats/Vertex.h(52): error: calling a __device__ function("_ZN2o210math_utils6detail10GPUPoint3DI1?L1?0EE4SetZE1?") from a __host__ __device__ function("VertexBase") is not allowed
/sw/SOURCES/O2/14924-slc9_x86-64/0/DataFormats/Reconstruction/include/ReconstructionDataFormats/Vertex.h(50): error: calling a __device__ function("o2::math_utils::detail::GPUPoint2D<float, (int)0> ::SetX(float)") from a __host__ __device__ function("VertexBase") is not allowed
/sw/SOURCES/O2/14924-slc9_x86-64/0/DataFormats/Reconstruction/include/ReconstructionDataFormats/Vertex.h(51): error: calling a __device__ function("_ZN2o210math_utils6detail10GPUPoint2DI1?L1?0EE4SetYE1?") from a __host__ __device__ function("VertexBase") is not allowed
/sw/SOURCES/O2/14924-slc9_x86-64/0/DataFormats/Reconstruction/include/ReconstructionDataFormats/Vertex.h(52): error: calling a __device__ function("_ZN2o210math_utils6detail10GPUPoint3DI1?L1?0EE4SetZE1?") from a __host__ __device__ function("VertexBase") is not allowed
/sw/SOURCES/O2/14924-slc9_x86-64/0/DataFormats/Reconstruction/include/ReconstructionDataFormats/Vertex.h(50): error: calling a __device__ function("o2::math_utils::detail::GPUPoint2D<float, (int)0> ::SetX(float)") from a __host__ __device__ function("VertexBase") is not allowed
/sw/SOURCES/O2/14924-slc9_x86-64/0/DataFormats/Reconstruction/include/ReconstructionDataFormats/Vertex.h(51): error: calling a __device__ function("_ZN2o210math_utils6detail10GPUPoint2DI1?L1?0EE4SetYE1?") from a __host__ __device__ function("VertexBase") is not allowed
/sw/SOURCES/O2/14924-slc9_x86-64/0/DataFormats/Reconstruction/include/ReconstructionDataFormats/Vertex.h(52): error: calling a __device__ function("_ZN2o210math_utils6detail10GPUPoint3DI1?L1?0EE4SetZE1?") from a __host__ __device__ function("VertexBase") is not allowed
/sw/SOURCES/O2/14924-slc9_x86-64/0/DataFormats/Reconstruction/include/ReconstructionDataFormats/Vertex.h(50): error: calling a __device__ function("o2::math_utils::detail::GPUPoint2D<float, (int)0> ::SetX(float)") from a __host__ __device__ function("VertexBase") is not allowed
/sw/SOURCES/O2/14924-slc9_x86-64/0/DataFormats/Reconstruction/include/ReconstructionDataFormats/Vertex.h(51): error: calling a __device__ function("_ZN2o210math_utils6detail10GPUPoint2DI1?L1?0EE4SetYE1?") from a __host__ __device__ function("VertexBase") is not allowed
/sw/SOURCES/O2/14924-slc9_x86-64/0/DataFormats/Reconstruction/include/ReconstructionDataFormats/Vertex.h(52): error: calling a __device__ function("_ZN2o210math_utils6detail10GPUPoint3DI1?L1?0EE4SetZE1?") from a __host__ __device__ function("VertexBase") is not allowed
ninja: build stopped: subcommand failed.

Full log here.