Fixed bug for composite DV

[ewu63]

Purpose

Apparently, I had hard-coded the initial DVs to zero. I didn't care at the time because in all my tests, the initial DVs happen to be zero anyways. But now I fixed it so it computes the correct initial DVs.

Also, I changed getValues() to return real values instead of complex. It didn't make sense to me to return any complex DVs, and I'm pretty sure the ESP/VSP versions will always return real values. The tests should all pass, and I'm somewhat confident in this change because getValues() is not really used internally in DVGeo. But maintainers please double check that this works.

Expected time until merged

ASAP

Type of change

• Bugfix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (non-backwards-compatible fix or feature)
• Code style update (formatting, renaming)
• Refactoring (no functional changes, no API changes)
• Documentation update
• Maintenance update
• Other (please describe)

Testing

N/A

Checklist

• I have run flake8 and black to make sure the code adheres to PEP-8 and is consistently formatted
• I have run unit and regression tests which pass locally with my changes
• I have added new tests that prove my fix is effective or that my feature works
• I have added necessary documentation

[codecov]

Codecov Report

Merging #129 (96853e1) into main (fa469af) will increase coverage by 0.00%.
The diff coverage is 55.55%.

@@           Coverage Diff           @@
##             main     #129   +/-   ##
=======================================
  Coverage   62.55%   62.56%           
=======================================
  Files          43       43           
  Lines       11182    11186    +4     
=======================================
+ Hits         6995     6998    +3     
- Misses       4187     4188    +1     

Impacted Files	Coverage Δ
pygeo/parameterization/DVGeo.py	64.31% <50.00%> (+0.02%)	⬆️
pygeo/parameterization/designVars.py	74.87% <50.00%> (ø)
pygeo/__init__.py	89.47% <100.00%> (ø)

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[anilyil]

the bug fix looks good. I like the getValues change but I am not sure if it would break anybody's workflow? Maybe some people are getting the values this was resolved offline

[anilyil]

PR's so good I had to approve it twice