Support max-line-length in organize imports

Referenced in https://github.com/Microsoft/TypeScript/issues/22974

> By the way, I ran "organize imports" on about 800 files. Works really well other than this problem and it puts imports that were previously on multiple lines onto one... so that will break my linting rule for "max-line-length". Luckily it's easy to write a script to investigate and break them back onto multiple lines 😄
