Vue-cli: Support tslint.yaml configuration file in vue-cli-service lint

[Jancat]

What problem does this feature solve?

.yaml configuration file is widely used. And now it hasn't been supported by vue-cli-service lint, throw the error Could not find config file at /path/to/project/tslint.json

What does the proposed API look like?

vue-cli-service lint tslint.yaml

[algil]

It would also be great for tslint.js files

[sodatea]

Implemented in #3305