DYnamic model provider implementation; minor fixes

proj/sxanim/vs2013/sxanim.vcxproj

proj/sxanim/vs2013/sxanim.vcxproj.filters

source/anim/AnimatedModel.cpp

source/anim/AnimatedModel.h

source/anim/AnimatedModelProvider.cpp

source/anim/AnimatedModelProvider.h

source/anim/AnimatedModelShared.cpp

source/anim/AnimatedModelShared.h

source/anim/DynamicModel.cpp

source/anim/DynamicModel.h

source/anim/DynamicModelProvider.cpp

source/anim/DynamicModelProvider.h

source/anim/DynamicModelShared.cpp

source/anim/DynamicModelShared.h

source/anim/Renderable.cpp

source/anim/RenderableVisibility.cpp

source/anim/RenderableVisibility.h

source/anim/animated.cpp

source/anim/animated.h

source/anim/sxanim_dll.cpp