[WIP] Update dependencies and build system

[limzykenneth]

Addresses #4201

Changes:

As per the related issue, I've begun updating the dependencies and refactoring the build system. This is a work in progress, I just want to share it here and if at any reasonable breakpoint the work should be merged before everything is done then just let me know I'll merge this in before continuing.

So far two big changes are included:

1. grunt-saucelabs dependency has been removed and the related steps removed as well. As far as I know saucelabs isn't being used (CI isn't running the steps) and the package is full of security vulnerabilities.
2. grunt-release-it has been replaced with release-it directly. The grunt plugin wasn't being maintained for several years now and it's only a thin wrapper around release-it. The version of release-it grunt-release-it was using is very out of date with the current version so a bit of refactoring of the config is required but the front facing interface remain the same, ie the release step remain the same grunt release-p5:[increment].

Very happy to say that right now npm audit only gives the following:

8 moderate severity vulnerabilities in 7106 scanned packages
  8 vulnerabilities require manual review. See the full report for details.

(all from grunt-contrib-yuidoc 😞 )

Edit 1
3. grunt karma now works. A dependency was missing. However, the benchmarking part will be refactor out of this repo into its own repo, hopefully with a CI running and reporting the benchmarking numbers.

Will continue on this...

PR Checklist

• npm run lint passes
• Inline documentation is included / updated
• Unit tests are included / updated
• Benchmarks are included / updated

[limzykenneth]

This is ready for review.

I've removed a few unused dependencies and refactor out another one with native node.js functionality. Several of the dependencies are updated to the latest version as well.

Two particular dependencies have a bit more problem than the others. One is grunt-contrib-yuidoc which despite the vulnerabilities, is no longer releasing new version and replacing it is a whole big project on its own. The other is prettier which oddly introduces incompatible rules in its minor release so will require some more configuration to be compatible with existing code.

Benchmark wise grunt karma is working now but I'll be working on a benchmarking repo so we can keep it here until that's done.

[lmccart]

all looks great!