New libraries
* Added [NanoVG](https://github.com/memononen/nanovg): see [python bindings](https://github.com/pthom/imgui_bundle/blob/main/bindings/imgui_bundle/nanovg.pyi), code of [python demos](https://github.com/pthom/imgui_bundle/tree/main/bindings/imgui_bundle/demos_python/demos_nanovg), code of [C++ demos](https://github.com/pthom/imgui_bundle/tree/main/bindings/imgui_bundle/demos_cpp/demos_nanovg), online [full demo](https://traineq.org/ImGuiBundle/emscripten/bin/demo_nanovg_full.html), online [simple demo](https://traineq.org/ImGuiBundle/emscripten/bin/demo_nanovg_heart.html), and [API for integration with ImGui](https://github.com/pthom/imgui_bundle/blob/main/external/nanovg/nvg_imgui/nvg_imgui.h). Works on Linux, Windows, macOS, emscripten, iOS and Android (OpenGL only).
Bundle
* Update imgui to v1.90.1-docking
* Update implot, imgui_test_engine, imgui-node-editor
Python
* Release the Python GIL when rendering: improve multithreading performance (see [171](https://github.com/pthom/imgui_bundle/issues/171))
* Fix an issue under Ubuntu where cibuildwheel binary wheels did not work (see [170](https://github.com/pthom/imgui_bundle/issues/170))
Hello ImGui
* Added EdgeToolbars: see [definition](https://github.com/pthom/hello_imgui/blob/3a279ce7459b04a4c2e7460b844cbf354833964e/src/hello_imgui/runner_callbacks.h#L72-L102), [callbacks](https://github.com/pthom/hello_imgui/blob/3a279ce7459b04a4c2e7460b844cbf354833964e/src/hello_imgui/runner_callbacks.h#L140-L147), [example usage](https://github.com/pthom/hello_imgui/blob/3a279ce7459b04a4c2e7460b844cbf354833964e/src/hello_imgui_demos/hello_imgui_demodocking/hello_imgui_demodocking.main.cpp#L694-L714), and [demo](https://traineq.org/ImGuiBundle/emscripten/bin/demo_docking.html)
* Callbacks: add [EnqueuePostInit, EnqueueBeforeExit, PostInit_AddPlatformBackendCallbacks](https://pthom.github.io/hello_imgui/book/doc_params.html#runnercallbacks)
* Add [renderer_backend_options](https://pthom.github.io/hello_imgui/book/doc_params.html#renderer-backend-options)
* Add support for Extended Dynamic Range (EDR) on macOS : see [PR](https://github.com/pthom/hello_imgui/pull/89). Added [demo / EDR](https://github.com/pthom/hello_imgui/tree/master/src/hello_imgui_demos/hello_edr) - Only works with Metal
* Test Engine: can re-call params.callbacks.RegisterTests
* rememberEnableIdling default=false (true is too surprising)
* emscripten: Use webgl2 / GLES3
Fixes
* Fix usage of `ShowIdStackTool` without ImGui Test Engine (see [166](https://github.com/pthom/imgui_bundle/issues/166))
* ImGuiColorTextEdit: added bindings for GetSelection / Fixed keyboard selection (see [169](https://github.com/pthom/imgui_bundle/issues/169))