Add support for helm template

[gravesm]

SUMMARY

This commit adds basic support for helm template. The functionality allows one to either render a chart's templates to a specific directory, or capture the rendered templates as a string of concatenated yaml documents.

Closes #367

ISSUE TYPE

• New Module Pull Request

COMPONENT NAME

helm_template

ADDITIONAL INFORMATION

Sorry, for the extensive diff on tests_chart.yml but I really wanted to fix our test teardown. Aside from indentation changes, the only lines in that file that are new are 3-11 and 325-349.

[codecov[bot]]

Codecov Report

Merging #368 (8d5d29b) into main (80b9140) will decrease coverage by 0.99%. The diff coverage is n/a.

@@            Coverage Diff             @@
##             main     #368      +/-   ##
==========================================
- Coverage   36.80%   35.81%   -1.00%     
==========================================
  Files           3        3              
  Lines         758      779      +21     
  Branches      148      154       +6     
==========================================
  Hits          279      279              
- Misses        430      451      +21     
  Partials       49       49              

Impacted Files	Coverage Δ
...ommunity/kubernetes/plugins/module_utils/common.py	34.19% <0.00%> (-1.28%)	:arrow_down:

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[github-actions[bot]]

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