ENH: Daq Platform rework

[ZLLentz]

Description

Concept for doing the daq platform in the yaml file instead of hard-coded in the module. This allows the user to configure the daq platform on a per-host or per-hutch basis.

Motivation and Context

Cxi has 2 daqs

How Has This Been Tested?

I will add tests before the merge

Where Has This Been Documented?

I have updated the docs

[codecov-io]

Codecov Report

Merging #99 into master will increase coverage by 0.04%.
The diff coverage is 100%.

@@            Coverage Diff             @@
##           master      #99      +/-   ##
==========================================
+ Coverage   97.12%   97.16%   +0.04%     
==========================================
  Files          15       15              
  Lines         695      705      +10     
==========================================
+ Hits          675      685      +10     
  Misses         20       20

Impacted Files	Coverage Δ
hutch_python/constants.py	100% <100%> (ø)	⬆️
hutch_python/load_conf.py	98.76% <100%> (+0.09%)	⬆️
hutch_python/daq.py	100% <100%> (ø)	⬆️

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[teddyrendahl]

Agreed. This will break MFX if we upgrade without adding the platform default of 4. Not a problem just a note.