Bugfix to kinesis.py when using ThorLabs HDR50/M rotation stage with BSC201 controller

[mnirkko]

Problem

• Connecting to a ThorLabs HDR50/M rotation stage with BSC201 motor controller causes a bunch of warnings of type UserWarning to be printed: model number SCC201 doesn't match the device ID prefix 40((BSC101|SSC20.)).
• A second UserWarning is printed: can't recognize motor model SCC201; setting all scales to internal units. This causes all scales to be set to internal units (1,1,1), so the stage cannot be rotated in units of deg as intended.

Debugging

• The hardware model query return SCC201 (note the double C), which does not match anything in kinesis.py.
• The printed label on the back of the device hardware says BSC201, which is also not listed as an available match.
• The serial number starts with 40 which means the model number is compared with (BSC101|SSC20.) as a regex expression by the function _model_match(). This function returns False, causing get_device_info() to print a warning.

Solution

• Edit the regex expression to include BSC201 and SCC201 as search patterns, and include the SCC20 pattern when attempting to set the scale correctly.
• Now, no more warnings appear when connecting to the stage.
• The resulting KinesisMotor._scale values are (75093.25279758392, 4031005.8101743045, 826.1143307371219). This matches the values from the APT User Manual (search for "HDR50") (75091, 4030885, 826) divided by 0.99997 deg (normalisation).

[mnirkko]

The PR now points to the development branch rather than the base branch.

[mnirkko]

@AlexShkarin any update on this? I have received some feedback from various people implementing these changes, so it could be useful to include in a future release.