Add support for Candeo RD1P device with v2 firmware

[candeodevelopment]

Proposed change

Adds support for newer v2 firmware for the RD1P series of device.

We also moved some shared code back into the device specific file to make future updates simpler. The shared code was an artifact from an earlier PR where each device had a separate file - since this is no longer the case the code no longer needs to be shared.

@TheJulianJES it would be great if this PR can be approved as soon as possible, devices with this new firmware version are due to hit the shelves in the next couple of weeks or so.

Additional information

Device diagnostics

Checklist

• The changes are tested and work correctly
• pre-commit checks pass / the code has been formatted using Black
• Tests have been added to verify that the new code works
• Device diagnostics data has been attached

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 92.61%. Comparing base (b139f81) to head (e08a61d).

Additional details and impacted files

@@           Coverage Diff           @@
##              dev    #5268   +/-   ##
=======================================
  Coverage   92.60%   92.61%           
=======================================
  Files         424      424           
  Lines       14667    14684   +17     
=======================================
+ Hits        13582    13599   +17     
  Misses       1085     1085           

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[candeodevelopment]

@TheJulianJES any chance of getting this one pushed through please?

We're not sure what the needs changes / 2.0 migration needed labels mean, but if there are changes required then please let us know!