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

Examples: Using Dark theme by default. (#707). Tweaked demo code.

Examples: Using #include "imgui.h" instead of <imgui.h> appear correct-er as per standard? xcode+clang are very nitpicky there.

Examples: Comments, synched some minor drift between examples + stronger suggestion to use StyleColorsDark().

Renamed the emblematic ShowTestWindow() function to ShowDemoWindow(). Kept redirection function (will obsolete).

Examples: Added a bunch of comments/referencs related to io.WantCaptureMouse, io.WantCaptureKeyboard (#1262, #1237, #1219, #635, #1058, #1051, #912, #533, #703, #446, #459, #364, #213, #52, and more)

Examples: Comments to guide people unfamiliar with the librairies used.

Examples: Added more comments near the fonts loading section, to catch common questions and errors (e.g. #1397, #1366, #1341, #1222, #1193, #1115, #951, etc.)

Examples: Adding Roboto to the commented-out font list, and removing the unnecessary ProggyClean from there.

Examples: Avoid using ImColor() to not tempt newcomers into looking at it

Examples: Main: Removed call to SetNextWindowSize()

Renamed ImGuiSetCond_XXX type and enums to ImGuiCond_XXX, kept old enums under #ifdef IMGUI_DISABLE_OBSOLETE_FUNCTIONS

Examples: GL3: Comments about gl3w (#880)

Examples: SDL: Initialize video+timer subsystem only.

Trim trailing spaces

Examples: SDL: Made ImGui_ImplSdlGL3_NewFrame() signature match GL2 one

Examples: SDL/OpenGL: Tabs to spaces

Examples: SDL2+OpenGL3: Fix context creation options (#468, #463)

Examples: Header comments.

Examples: Clarified comments. Removed font merging example from comments.

Examples: SDL+OpenGL3: Various fixes to example to make it matches current GL3 example (#356)

Examples: SDL+OpenGL3: Using glew like existing example + renaming (#356)

Previous SDL implementation didn't work with my OpenGL 3.3 project, spliced the GLFW OpenGL examples on top of the SDL example to create an option that works for me. Could be useful for others.