Feature/64bit

Features:
64-bit library additions for all external dependencies (excluding QuickTime)
Samples and projects in "blocks" should all build properly for 64-bit VC10 builds.  
Most samples run as you would expect.

Known Issues:
QuickTime lacks 64-bit libraries.  Samples using QuickTime have been disabled for 64-bit builds.
Cairo libraries are buggy.  Samples using Cairo won't display anything but a white screen.

TODO:
QuickTime workaround.
Working Cairo library.
Update test project files with 64-bit support.
Update TinderBox to allow for VC10 project creation with 64-bit support.


I scraped this branch together from one with a number of other additions, so if anything slips through that I didn't catch (namely FFT references), sorry about that.  Thanks.