ADDED NISDKExtendedEffects CLASS LIBRARY

Extending the real-time-filter-demo project with a new class library,
NISDKExtendedEffects, which has custom effects.  Currently it just has
effects that mimic functionality in the SDK.  The only purpose is to
show a way to achieve the same effect with custom filter code.  You
wouldn't actually want to use the effects that only mimic the SDK as is,
because they perform much worse.
Merge pull request #1 from Rob-Kachmar/Draft1

ADDED NISDKExtendedEffects CLASS LIBRARY