c-api for imgui (https://github.com/ocornut/imgui) Look at: https://github.com/cimgui for other widgets
reintroduced ImFontConfig_DefaultConstructor
see #14
ImGuiListClipper type added
release based on the imgui release tag 1.49: https://github.com/ocornut/imgui/releases/tag/v1.49
release based on the imgui release tag 1.48: https://github.com/ocornut/imgui/releases/tag/v1.48
release based on the imgui release tag 1.47: https://github.com/ocornut/imgui/releases/tag/v1.47