Upgrade mpi

[ptrbortolotti]

Purpose

This PR goes together with https://github.com/WISDEM/WISDEM/pull/583, where we've removed some of our own MPI logic and we started using the OpenMDAO one, which was less mature years ago and has now caught up. Note that WEIS uses a more sophisticated parallelization logic than WISDEM, with the color mapping dispatching OpenFAST jobs around the node(s), and so some of the scripts that could be removed from WISDEM had to be moved to WEIS

Type of change

What types of change is it? Select the appropriate type(s) that describe this PR

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

Testing

Tests should be passing successfully

Checklist

Put an x in the boxes that apply.

• [x] I have run existing tests which pass locally with my changes
• [ ] I have added new tests or examples that prove my fix is effective or that my feature works
• [ ] I have added necessary documentation

[ptrbortolotti]

shortly we will need to tag a new version of https://github.com/WISDEM/WISDEM and point to it from the environment file...

[dzalkind]

Thanks, for looking into this @ptrbortolotti!

I see you added some of the code from WISDEM to WEIS about computing the number of DVs in the blade optimization and others. Why do those need to be counted manually and which ones are counted automatically by openmdao?