Create PSP unit test framework and example

[jphickey]

Is your feature request related to a problem? Please describe.
Need to provide example of PSP unit tests. Coverage and functional testing are required but require a different approach. This issue will focus on the coverage test portion.

Describe the solution you'd like
Provide a framework and example to perform PSP coverage test.

Additional context
Using MCP750 as a proof-of-concept.

Requester Info
Joseph Hickey, Vantage Systems, Inc.