Add Helm Chart with Debug Features

[gilesknap]

first pass at helm chart for fastcs instances

fix service name

better port exposure for service.yaml

add helm chart publishing

remove service account creation from helm

switch to using Charts folder with subfolders for charts

add schema for fastcs-instance chart values.yaml

publish chart values schemas

publish chart values schemas

add schema generation to pre-commit

fixing the fastcs-instance chart schema

Add setuptools to dev requirements for aioca

Remove bodge from CI

Update DataType.validate to attempt cast (#182)

Do not propagate DRVL and DRVH to in type records in CA transport (#185)

Use SimpleHandler on AttrRW only (#186)

Add API to update attributes once when Backend.serve() called (#188)

Add ONCE constant to update attribute only when serve called

add debug features to helm chart

repair incorrect helm chart

debug now working

fix non-debug mode

fix incorrect terminationGracePeriodSeconds

add debug entrypoint

move initCommand into values

rename charts to remove "instance"

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 92.22%. Comparing base (225dca8) to head (6d52511).
⚠️ Report is 11 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #193      +/-   ##
==========================================
- Coverage   92.28%   92.22%   -0.06%     
==========================================
  Files          40       40              
  Lines        2009     2020      +11     
==========================================
+ Hits         1854     1863       +9     
- Misses        155      157       +2     

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