MacGui: New deinterlace initial implementation

MacGui: New deinterlace initial implementation
- Replace old deinterlace checkbox with NSPopUp Button
New Settings:
- None: No deinterlacing
- Fast: Original HB deinterlacing
- Slow: Yadif Mode 1
- Slower: Yadif and Mcdeint
- Slowest: Yadif and Mcdeint

Presets still work, any old one will use None or Fast above. New ones will accurately reflect the correct choice.

Note: need to determine if the preview is still reflecting deinterlacing on or off.

git-svn-id: svn://svn.handbrake.fr/HandBrake/trunk@772 b64f7644-9d1e-0410-96f1-a4d463321fa5