Add classes for Library, Class, and Function nodes.

There are no functional changes in this version. Only internal refactoring.

Add Recursive Descent Parser

Replace parsley with a recursive descent parser. This change makes it easier to parse things like 'long long' and function pointers.

Add ability to wrap a pure C library by setting 'language: c' in the YAML file.

Add support for std::vector

No longer create shroudrt.cpp file. Support routines are now added to the wrapper code.

Initial Open Source release of Shroud

v0.2

Initial Open Source Release of Shroud