Creative segment filter support with SDK segment filter (for MRAID capable bid request ) 

Added support at creative level for segment filters. Also tests for this has been added.
Also, a first creative segment filter was added. It is called "supportedSDKs" and let you bid in specific bid request that has MRAID support (also other sdks like VPAID and ORMMA).

To be consistent, I'd move this struct in the generic_creative_filters.h.