git: Fix line endings (?).
glide: Add frameskip feature.

A hack and slash transplant operation.  Just pulled the FrameSkipper
class from the gles2n64 plugin, and wired it into gles2glide64.  Prefs
are passed through the gles2glide config file for now.  Eventually they
should be migrated to the official mupen config file.  (Although up-
stream hasn't migrated everything yet either, so we could just wait
until they're finished.)

I made the defaults for glide "No more than 5 frames", whereas gles2n64
defaults to "No more than 2 frames".  Open to debate...

If this implementation sticks, then we should probably move the Frame-
Skipper and ticks files into the ae-bridge, since they're carbon copies
between gles2n64 and gles2glide64.