Use the plugin version of TS lint rather than the external version. Add the plugin as a local dev dependency and add the vscode extension that contributes the plugin as a recomended extension. This should enable the plugin when using the standard version of TS and when using the workspace version of TS

Fixes #59376
Fixes #59344

Fixes #60253

Syncs with master

Fixes #59372

Fixes #60865

Upgrades our build scripts to target ES2017 since they are run on modern versions of node

This allows us to remove shims for es6 features such as `Object.assign`, and also remove a few extra typings packages

Fixes #60447

These checks are now taking a few seconds to run. This will continue to slow down as we null check more files. Moving them to the test scripts as pretest checks instead

Fixes #59379

Fixes #60310

Fixes #60291