P-ISA Functional Modeler and supporting common libraries

[jobottle]

Adds P-ISA Functional Modeler and supporting common libraries

Proposed changes

Adds a functional modeler tool that implements the p-isa instruction set on CPU and allows for execution on CPU of p-isa programs.

Types of changes

What types of changes does your code introduce to the HE Toolkit project?
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• Bugfix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• Documentation update (if none of the other choices apply)

Checklist

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• I have read the CONTRIBUTING agreement
• Current formatting and unit tests / base functionality passes locally with my changes
• I have added tests that prove my fix is effective or that my feature works (if appropriate)
• I have added necessary documentation (if appropriate)
• Any dependent changes have been merged and published in downstream modules

Further comments

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explaining why you chose the solution you did, what alternatives you
considered, etc.

[kylanerace]

LGTM, Have been using this branch as the main testing platform

[christopherngutierrez]

Passing tests on my side. Looks good.