Examples: GLFW+GL2: Moved glfw, gl2 files to root folder, split imgui_impl_glfw_gl2 into _opengl2 and reused imgui_impl_glfw

Examples: GLFW+GL3: Split imgui_impl_glfw_gl3 into imgui_impl_glfw and imgui_impl_gl3 (wip)

Moved extra_fonts/ to misc/fonts/. Moved .natvis file to misc/natvis/ (#1569)

Added imgui.natvis helper for visual studio users. Added to examples projects.

Examples: Visual Studio projects: Disabled extraneous function-level check in Release build.

Examples: Added README into the Visual Studio solution to people are less likely to miss it.

Updated projects to reference new files (#219) ...

Didn't update iOS example (#247)

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 opengl3_exapmle into a glfw specific file that can be copied and pasted

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.

added opengl3 sample, mix from @ocornut and @thelinked