cl-warp: enable warp perspective handler

 * add warp handler and cl kernel which can work for DVS features
 * add structure XCamDVSResult
 * test cmdline, need set <buffercount=32 enable-warp=1>
   $ gst-launch-1.0 filesrc location=test.nv12 ! videoparse \
     width=1920 height=1080 format=nv12 ! xcamfilter copy-mode=1 \
     buffercount=32  enable-warp=1 ! queue ! vaapiencode_h264 \
     rate-control=cbr ! tcpclientsink host="$ip" port=3000

Signed-off-by: Wind Yuan <feng.yuan@intel.com>
25 files changed