Remove I3DEngine CryCommon Interface (#567)

Delete:

- I3DEngine
- Missions
- Time of day
- GameEffectsSystem Gem
- ImageProcessing Gem
- SVOGI Gem
- Various other things that don't do anything now that the legacy renderer has been removed.

Code/CryEngine/CryCommon/Mocks/IRendererMock.h

@@ -12,11 +12,15 @@
 #pragma once
 
 #include <IRenderer.h>
-#include <I3DEngine.h> // needed for SRenderingPassInfo definition
 #include <IVideoRenderer.h>
 #include <IImage.h>
 #include <gmock/gmock.h>
 
+struct SRendItemSorter {};
+struct SRenderingPassInfo {};
+struct SClipVolumeBlendInfo {};
+struct SFogVolumeData {};
+
 // the following was generated using google's python script to autogenerate mocks.
 // however, it needed some hand-editing to make it work, so if you add functions to IRenderer,
 // it will probably be better to just manually add them here than try to run the script again