Orbit camera sort of works.

Some code is written for the debug camera, but none of it works yet.
Enough of this for tonight.

Come clean-up, I think.  Nothing's changed from last commit.
Tried to get zoom to work.

It did not work.
Zoom kinda works.

It also suffers from the rotation errors.  I think the LookAt function
might be the cause of this.
That or my matrices are wrong.  This is probably more likely...
Update .gitignore
Relative lib files and code cleaning.

Library files are now in the libraries project folder.

I also moved the dll folder into the debug, so it shouldn't require you
to move it across all the time.
Git ignore stuff.

This should also stop the dll files from being wiped.  Convenience and
all that.