ImGui-SFML 2.4
A long time without the release! I have gotten a bit lazy...
- Don't update io.KeysDown for keys which Dear ImGui doesn't care about - fixes some crashes when pressing keys which Dear ImGui doesn't process
- Multiple window/Dear ImGui context support (thanks, @emrsmsrli)
- Support #define ImDrawIdx unsigned int in renderer via imconfig.h (thanks, @Doy-lee)
- Fix android delete/backspace keycodes (thanks, @Alia5)