Feature: omnibus PR updating scanner plugin

[codefriar]

@mitchspano

I am a typescript n00b. I figure there's every chance I have no idea what I'm doing.

This pr has a number of enhancements:

• it establishes some verification of the scanner inputs to ensure, for instance, the severity params are >0 and <3
• it mitigates the api rate limiting by utilizing the octokit throttling, and retry plugins
• it converts the scanner action's output to SARIF as a file
  • this mitigates the out-of-buffer error when too many violations are found. Writing the output to disk keeps it out of the buffer
  • Sarif provides us a standardized output for static code analysis.
  • the Sarif file is uploadable to github repos' security tab. These are helpful for high-regulation audits
  • It restructures the code as an ES module
  • it restructures the code to be more-class based, where it makes sense
  • It decomposes the types from logic classes

I think thats it.

[mitchspano]

Can we please split this up into more manageable and reviewable chunks?

This is too much to review all in one PR.

[RubenHalman]

@codefriar Nice PR. But I disagreed with this part:
run-flow-scanner: description: "Should this plugin run the lightning-flow-scanner" default: "false" haha! ;)

[mitchspano]

I cannot accept a PR of this magnitude to the project. This needs to be broken down into smaller chunks.

[codefriar]

as soon as I get a chance...