Syntax highlighting for Apache Thrift

## Contribution
**Since I'm a proud atom user now, I'm no longer maintaining this project. Feel free to fork.**

* Make sure to generate Thrift.tmLanguage from Thrift.YAML-tmLanguage before sending a pull request.

## Debug Hints
* Ctrl+Alt+Shift+P: show current scope

## References
* [Thrift interface description language](http://thrift.apache.org/docs/idl)
* [Annotation Test](http://code.metager.de/source/xref/apache/thrift/test/AnnotationTest.thrift)