Split libraries into separate subprojects

[jaseg]

Hi,
I think it could be useful to split the repository into one repository for each library. This would ease integration using git if one would only want to use one of the libraries. It would also add to the logical separation of the libraries with each one having its own commit history and commits always belonging to exactly one of them. A repository like this one would still be possible by creating a "meta-repository" including the library repos as git submodules.

Thanks for the good work, anyway
Sebastian