Added files for colour configuration

[adedamola-sode]

• Added the colour configuration files
• modified embedded_motor to use a certain class for default PVs

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 81.72%. Comparing base (b0c3871) to head (c4bf0fa).

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #179   +/-   ##
=======================================
  Coverage   81.72%   81.72%           
=======================================
  Files           9        9           
  Lines         673      673           
=======================================
  Hits          550      550           
  Misses        123      123           

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