krazyrain song converter

[chaosfox]

On the krazyrain_converter branch I'm working on a script (tools/snp2ojn.pl) that reads the SNP files of krazyrain and the MusicInfo.xml (that can be found inside Data/data.snp of the krazyrain installation) into ojn/ojm files.

So far, most of the musics convert without problems, except at some times the notes overlap their end with the start of another note, so I'm going to merge these kind of notes into one.
Example:
note x start 0 end 0.5
note x+1 start 0.5 end 1
result: note x start 0 end 1

Besides that, the next thing to be done is assign songids to each music so that o2jam and other emulator(o2mania) can also read these files without problems.