Fix #94, deprecate PSP stubs in MM coverage tets

[jphickey]

Checklist (Please check before submitting)

• I reviewed the Contributing Guide.
• I signed and emailed the appropriate Contributor License Agreement to GSFC-SoftwareRelease@mail.nasa.gov and copied cfs-program@lists.nasa.gov.

Describe the contribution
Only include PSP stubs if the OMIT_DEPRECATED flag is unset. The PSP now provides the full set of stubs.

Fixes #94

Testing performed
Build and run all coverage tests

Expected behavior changes
None

System(s) tested on
Debian

Additional context
Needs to be coordinated with nasa/PSP#435

Contributor Info - All information REQUIRED for consideration of pull request
Joseph Hickey, Vantage Systems, Inc.

[jphickey]

I'm not sure yet if OMIT_DEPRECATED is enough here, so marking this as a draft. I may need to use a different approach.

[jphickey]

I changed this to be a simple removal of the stubs (not deprecation) because one or the other of the builds will still fail depending on whether or not the PSP is included. There is no easy solution to getting forward+backward compatibility here.

The simplest path forward is to simply merge this in the same cycle as nasa/PSP#436 and note the dependency.