all: standardise tslint config

[43081j]

Fixes #305.

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Let me know if you still want this, otherwise i will throw it away.

• Added missing lint commands
• Made all tslint configs inherit the base one
• Fixed a couple of lint errors
• Added a lint script (npm run lint) to lint all packages

Couple of packages break the no-any rule so i turned it off as i didn't want to be altering interfaces for this.

[TimvdLippe]

What is the impact of the no-any rules? E.g. how many warnings are we getting? Would be great if we can remove that inconsistency as well, but probably better in a separate PR, potentially per package.

[43081j]

@TimvdLippe

no-any: false for:

• cleankill
• dom5
• web-component-tester

the first two use any in parameters of functions so we need to check what uses those functions externally before changing it (e.g. a lot depends on dom5).

WCT just uses any all over the place...

[TimvdLippe]

This LGTM. Probably needs another look from someone on the tools team as well.

[usergenic]

Thank you for this PR. Sorry for missing it earlier! Merging.