feat(vscode): switch to ts-tslint-plugin in favour of tslint

[Hotell]

If there is a linked issue, mention it here.

• [ ] Bug
• [x] Feature

Requirements

• [x] Read the contribution guidelines.
• [ ] Wrote tests.
• [ ] Updated docs and upgrade instructions, if necessary.

Rationale

tslint is very slow on it's own, but vscode extension is even slower. Also tslint code extension doesn't highlight runtime lint check errors. this PR fixes all of these issues