Created a dcm as a baseline device for i11

[RJCD-Diamond]

Created a dcm for i11. Intended for use as a baseline device

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 98.82%. Comparing base (2585faf) to head (0e33d1c).

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #1581   +/-   ##
=======================================
  Coverage   98.82%   98.82%           
=======================================
  Files         250      251    +1     
  Lines        8992     9025   +33     
=======================================
+ Hits         8886     8919   +33     
  Misses        106      106           

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[DiamondJoseph]

Are we able to use a signal on the superclass for a derived_signal? If not, I think wavelength could/should be added to the superclass for all to benefit from.