Examples: MSVC: increase warning level from /W3 to /W4 for OpenGL examples

Examples: Added 64-bit projects for MSVC

Examples: Moved GLFW/GL3W to a common libs/ folder

Examples: Updated to GLFW 3.1

Examples: Moved gl3w to opengl3_example directory + fixed msvc project paths

Examples: Refactored opengl_example into a glfw specific file that can be copied and pasted. ...

Other examples will follow.

Examples: Windows examples don't link with imm32.lib by default.

Replaced dependency on glew (inc. prebuilt one for Windows) by gl3w in source form ...

Expecting something to break now.

Examples: Desperate attempts removing link warnings under Windows. Screw standard librairies.

Examples: msvc: output .exe in project directory (not in solution directory).

Examples: DirectX examples applications all have a Console for debugging.

Loading TTF file with stb_truetype. Broke setup API slightly. Font baked, packed with space for custom data. Embeds compressed ProggyClean.

Examples: removed LICENSE file from MSVC project.

Examples: OpenGL: fix accessing libraries via ProjectDir instead of SolutionDir

Added DirectX11 example application (code is too long!)

OpenGL/DirectX examples: support for international text input in UTF-8 + implement ImeSetInputScreenPosFn on Windows.

Added OpenGL and DirectX9 example applications