WinGui: Change Loose and Strict Anamorphic to use hb_set_anamorphic_size
Note: No Anamorphic mode still needs work, and Custom Anamorphic is still hand calculation.  

git-svn-id: svn://svn.handbrake.fr/HandBrake/trunk@5649 b64f7644-9d1e-0410-96f1-a4d463321fa5