Other changes in the commit:
- Change build option from URHO3D_BUILD_TYPE to URHO3D_LIB_TYPE. Default value is STATIC.
- Automatically add compiler definition 'URHO3D_STATIC_DEFINE' when linking with Urho3D library statically.
- Move LuaScript subsystem from Extra/ to Engine/.
- Enable FindUrho3D module to also detect Urho3D library target when the FindUrho3D module is being used internally by Urho3D project.
- Configure to build all the samples for iOS and Android platforms also when option to build samples is enabled.
- Export all the Register*Library() global functions.
- Rewrite all the tools, samples, and extras targets to link against Urho3D library.
TODOs:
- Combine engine sub-libraries into one.
- Test builds on non-Linux platforms.
Added diffuse unlit & notexture unlit techniques.
Do not use occlusion if viewport is very tall compared to width, as the pixel width of the occlusion buffer is fixed and would result in large CPU time consumption.
Fixed build of samples.
Removed line to disable MinSizeRel build type in CMake script as it seems to have no effect any longer.
Removed unused function to get AnimationState by C string of animation name.
