optionally deploy built-in Policy Initiatives for NIST 800-53, CMMC Level 3, or DOD IL5

[shawngib]

Description

Add parameter based deployment for Policy initiative deployment of NIST/CMMC/IL5 as needed.

Issue reference

The issue this PR will close: #387

Checklist

Please make sure you've completed the relevant tasks for this PR, out of the following list:

• All tests pass (manual and automated)
• The documentation is updated to cover any new or changed features
• Markdown files have been linted using the recommended linter. (See .vscode/extensions.json.)
• Relevant issues are linked to this PR

[shawngib]

Need to revert back. The original was correct when testing it works as expected with original not with new line.
Original:

var modifiedAssignment = (environment().name =~ 'AzureCloud' && builtInAssignment =~ 'IL5' ? 'NIST' : builtInAssignment)

[glennmusa]

Need to revert back. The original was correct when testing it works as expected with original not with new line.
Original:

var modifiedAssignment = (environment().name =~ 'AzureCloud' && builtInAssignment =~ 'IL5' ? 'NIST' : builtInAssignment)

Huh, my mistake. Looks like I need to read up on inline function evaluation in Bicep! My assumption was (environment().name =~ 'AzureCloud' && builtInAssignment =~ 'IL5') ? 'NIST' : builtInAssignment

[glennmusa]

minor changes for references and naming, everything worked great and deployed with NIST, IL5, and CMMC in AzureUsGovernment and AzureCloud

[glennmusa]

thanks @shawngib 🎉