Add SerializerSubsystem

[jcballock]

Summary

Implement a SerializerSubsystem, for serializing and kicking game pieces into the shooter subsystems.

Completion Criteria

• SerializerSubsystem is implemented using SubSystemBase.
• The subsystem has a function for serializing and kicking the game piece into the shooter subsystem
• The subsystem is successfully validated and tested in simulation.
• Document the simulation results and the subsystem's behavior.

Additional Notes

• Attach or link to simulation test results and configurations as part of validation.

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This feature is potentially required for the 2026 robot project. A discussion can be made on whether or not the serializer should be part of the flywheel subsystem. To separate concerns we will likely want an individual subsystem as spelled out here which can be combined with the shooter via Commands

[AlphaAlex303]

Pull Request Ready to review.
No Sim ran.

#9