Added new methods to set uniforms in sf::Shader

Implements a new design for the shader uniform API.
* Added Shader::setUniform() and Shader::setUniformArray() overloads for the following types:
  -> scalars: float, int, bool
  -> vectors: 2D, 3D, 4D
  -> matrices: 3x3, 4x4
  -> arrays of basic types
  -> samplers (sf::Texture)
  -> conversions for SFML types (sf::Transform, sf::Color)
* Added sf::Glsl namespace with GLSL-equivalent types
* Deprecated Shader::setParameter() overloads

Other related changes:
* Refactored sf::Shader internals to avoid code duplication
* Improved documentation
* Added SFML_DEPRECATED macro to Doxyfile
* Defined _SCL_SECURE_NO_WARNINGS to disable std::copy() warnings on MSVC

CMakeLists.txt

@@ -125,9 +125,9 @@ if(NOT BUILD_SHARED_LIBS)
     add_definitions(-DSFML_STATIC)
 endif()
 
-# remove SL security warnings with Visual C++
+# Visual C++: remove warnings regarding SL security and algorithms on pointers
 if(SFML_COMPILER_MSVC)
-    add_definitions(-D_CRT_SECURE_NO_DEPRECATE)
+    add_definitions(-D_CRT_SECURE_NO_DEPRECATE -D_SCL_SECURE_NO_WARNINGS)
 endif()
 
 # define SFML_OPENGL_ES if needed