Support for Kotlin 1.3

[AlexeySoshin]

Ruleset for Kotlin 1.3 used @wix

Inspired by https://github.com/cgruber/rules_kotlin
@cgruber

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[AlexeySoshin]

I signed it!

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CLAs look good, thanks!

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[cgruber]

I'm glad you took inspiration, but the reason I'm keeping it in my fork, and haven't filed more or less this PR, is that the team has indicated that they're not going to take patches to the legacy rules, until they've published the new rules according to the roadmap. So I just haven't bugged the team with PRs like this, because they're super busy trying to get the new rules out, and there's less friction just maintaining my fork. 🤷‍♂

[cgruber]

@jin - has that position changed?

[AlexeySoshin]

@cgruber Glad you didn't keep it private. Figuring what the hell is wrong with Kapt would be a nightmare by myself :)

[cgruber]

Some of it is pretty arcane, it's true.

[jin]

Thanks for the PR! Could you please revert the indentation changes so the diff is minimal?

[jin]

As mentioned in #159 (comment), we'll be working with @cgruber to merge his fork to this repo.

Thank you @AlexeySoshin for creating this PR!