Complex numbers updates for nifake and nirfsg

[rahulr-NI]

• This contribution adheres to CONTRIBUTING.md.

- [ ] I've updated CHANGELOG.md if applicable.

- [ ] I've added tests applicable for this pull request

What does this Pull Request accomplish?

This PR is update the nimi-python repository metadata files with those from NI's private repository with updates to complex number related APIs.
Below are the changes done.

• Updated the complex_type parameter as complex_array_presentation as the code review comments received iternally at NI. And its value changes.
• Code gen changes with respect to above variable names changes.
• Removed complex_type default value setting in test_codegen_helper.py file as this remains unused.
• Incorporating other AzDo PR comments like changing API description, parameter desciption update as received in PR

What testing has been done?

Ensured that tox build is successful and generated changes are intended.

[codecov-commenter]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 89.08%. Comparing base (4b9434f) to head (b978a13).
⚠️ Report is 1 commits behind head on master.

Additional details and impacted files

@@           Coverage Diff           @@
##           master    #2131   +/-   ##
=======================================
  Coverage   89.07%   89.08%           
=======================================
  Files          71       71           
  Lines       18960    18960           
=======================================
+ Hits        16889    16890    +1     
+ Misses       2071     2070    -1     

Flag	Coverage Δ
codegenunittests	84.44% <100.00%> (ø)
nidcpowersystemtests	94.65% <ø> (+0.04%)	⬆️
nidcpowerunittests	89.53% <ø> (ø)
nidigitalsystemtests	92.26% <ø> (ø)
nidigitalunittests	68.44% <ø> (ø)
nidmmsystemtests	92.72% <ø> (ø)
nifakeunittests	85.52% <ø> (ø)
nifgensystemtests	94.61% <ø> (ø)
nimodinstsystemtests	73.85% <ø> (ø)
nimodinstunittests	94.20% <ø> (ø)
nirfsgsystemtests	75.78% <ø> (ø)
niscopesystemtests	92.94% <ø> (ø)
niscopeunittests	43.20% <ø> (ø)
nisesystemtests	91.50% <ø> (ø)
niswitchsystemtests	82.03% <ø> (ø)
nitclksystemtests	94.87% <ø> (ø)
nitclkunittests	98.26% <ø> (ø)

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Files with missing lines	Coverage Δ
build/helper/codegen_helper.py	83.71% <100.00%> (ø)
build/helper/metadata_add_all.py	81.10% <100.00%> (ø)
build/helper/metadata_filters.py	72.81% <100.00%> (ø)
generated/nifake/nifake/session.py	77.50% <ø> (ø)

... and 1 file with indirect coverage changes

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[ni-jfitzger]

@rahulr-NI travis-ci says that "generated/nirfsg/nirfsg/session.py" isn't up-to-date.

[marcoskirsch]

I have updated the description slightly to be useful to people who don't work at NI, since this is an Open Source repository.

[rahulr-NI]

I have updated the description slightly to be useful to people who don't work at NI, since this is an Open Source repository.

@rahulr-NI travis-ci says that "generated/nirfsg/nirfsg/session.py" isn't up-to-date.

I have update it Jay. It was because array_representation parameter was written as array_representations in metadata. This change is addressed in multi-dimensional array pr. Resolving it here as well. Thanks.

[ni-jfitzger]

I probably already suggested some test be added to build/unit_tests/test_codegen_helper.py. Still applies but it doesn't need to be done as part of this PR.