Add support for NFS export advanced settings

[fpfuetsch]

Description

This PR enables configuration of advanced settings of a single NFS export like map_lookup_uid.

GitHub Issues

Fixes #213

Checklist:

• I have performed a self-review of my own code to ensure there are no formatting, pep8, linting, or security issues
• I have performed Ansible Sanity test using --docker default
• I have verified that new and existing unit tests pass locally with my changes
• I have not allowed coverage numbers to degenerate
• I have maintained at least 90% code coverage
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• I have added tests that prove my fix is effective or that my feature works
• Backward compatibility is not broken

How Has This Been Tested?

• Tested using local build

[anupamaloke]

@fpfuetsch, thank you for submitting this PR. The code changes looks good. I just have a minor comment regarding removing the state sub-option argument for the secondary_groups. I would prefer to be as declarative as possible :-)

[codecov-commenter]

Codecov Report

❌ Patch coverage is 92.46575% with 11 lines in your changes missing coverage. Please review.
✅ Project coverage is 90.42%. Comparing base (da078f2) to head (4b2c059).
⚠️ Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
plugins/modules/nfs.py	90.43%	7 Missing and 4 partials ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #214      +/-   ##
==========================================
+ Coverage   90.35%   90.42%   +0.06%     
==========================================
  Files         143      143              
  Lines       16766    16906     +140     
  Branches     2317     2347      +30     
==========================================
+ Hits        15149    15287     +138     
- Misses        946      949       +3     
+ Partials      671      670       -1     

Flag	Coverage Δ
units	90.42% <92.46%> (+0.06%)	⬆️

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[anupamaloke]

LGTM

[fpfuetsch]

@anupamaloke could you run the test coverage check again please?