Ignore files which are not crucial
Shader files localization changed
First steps of refactor

Trying some concepts only for ClipmapWireframeShader. Major thing is
unify uniform setters instead of dedicated functions for all uniform
variables.
Names of uniform setters unified
Uniform's names are now stored in strings
Uniform setters separated like it was before
Most of shaders functionality moved to base class
Filters reorganization
LanscapeEditor class filter changed
Unnecessary, empty shaders .cpp files deleted
Shader comments updated
Merge branch 'master' into shader_refactor

Conflicts:
	Src/LandGLContext.cpp
Merge pull request #1 from CerberusDev/shader_refactor

Merging branch shader_refactor to master