This will include code for seeking and getting the current position in
the song. Right now I just have a function for resetting the position
to the beginning of the song.
Now I won't have to keep using libsaria_get() to access parts of
libsaria. This should also cut down on the number of things that need
to be recompiled when libsaria is changed...
I have created generic functions for registering and triggering
callbacks. New callbacks can be added by creating a new constant in the
callback_t enum.
I stop playback, and seek to the beginning. I do this as to different
function calls in the Libsaria class so callbacks will still trigger
(once they have been implemented).