See #57. Add Uncrustify beautifier for multiple language support.

Uncrustify Language support:
- C
- C++
- C#
- Objective-C
- Java
- D
- Pawn
- Vala

Closes #45. Add Java Support.

Currently, use the configPath option to set an absolute or relative path
(relative to the currently beautified file) to specific the .cfg file
for Uncrustify to use as configuration options.