Switch the default renderer color range to full

Author: cgutman

app/streaming/video/ffmpeg-renderers/renderer.h

@@ -224,8 +224,8 @@ class IFFmpegRenderer : public Overlay::IOverlayRenderer {
     }
 
     virtual int getDecoderColorRange() {
-        // Limited is the default
-        return COLOR_RANGE_LIMITED;
+        // Full is the default
+        return COLOR_RANGE_FULL;
     }
 
     virtual int getFrameColorspace(const AVFrame* frame) {