Import languages from Pygments

Create a script, any language, which must be checked into `/tools/` in this repo and be run in Travis CI, which creates data files for any languages that are in Pygments but are missing from coAST.

This would replace https://github.com/coala/coala/issues/4556 .

Try to include as much information from Linguist as possible, enhancing the local schema as needed.

a relevant WIP is https://github.com/coala/coala/pull/3162

Note the hard part of this is merging language versions to avoid essentially duplicate languages. See some of the logic from `.misc/pygments_coalang_import.py` in that WIP .