Added headers to Xcode project files.

Added wildmidi-devtest to build (default on) for future debugging and hoping to encourage other developers to are file format tests to it as we add more formats
Merge pull request #5 from Mindwerks/master

update my fork
Added MIDI type 2 support.
Fixed 2 clang warnings.
Merge pull request #78 from chrisisonwildcode/master

Pulling in cmake and devtest changes