Publish SKY UX TSLint rules as separate package

[Blackbaud-IsaacAggrey]

Expected behavior

npm install @skyux/tslint-rules - doesn't exist ;)

Actual behavior

Currently, TSLint rules are only provided by skyux-builder. Plain NPM libraries currently might not use skyux-builder. Different discussion is if one day they will?

Implementation

It would model something like AirBnb's TSLint:

• NPM package - https://www.npmjs.com/package/tslint-config-airbnb
• repo - https://github.com/progre/tslint-config-airbnb

Impact

skyux-builder would instead pull in its TSLint rules as a dependency by skyux-builder.

Consumers would need to change their tslint.json from @blackbaud/skyux-builder/tslint to @skyux/tslint-rules/tslint

[Blackbaud-SteveBrush]

We would more than likely move this to the @skyux-sdk namespace, to keep it consistent with other development dependencies.

[Blackbaud-AlexKingman]

Closing due to inactivity. If there is still a need for this functionality, we'd be happy to take a contribution.