update bundled_deps

bundled_deps/imgui/README.md

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+** Dear ImGui is a bloat-free graphical user interface library for C++.**
+
+For more information go to https://github.com/ocornut/imgui
+
+THIS DIRECTORY CONTAINS THE imgui-1.83 ad5d1a8 SOURCE DISTRIBUTION.
+
+
+Customized with the following commits:
+f93d0001baa5443da2c6510d11b03c675e652418
+b71d787f695c779e571865d5214d4da8d50aa7c5
+
+imgui_stdlib.h + imgui_stdlib.cpp are move from directory /imgui/misc/cpp/
+InputText() wrappers for C++ standard library (STL) type: std::string.
+This is also an example of how you may wrap your own similar types.
+
+imstb_truetype.h modification:
+
+Hot fix for open symbolic fonts on windows
+62bdfe6f8d04b88e8bd511cd613be80c0baa7f55
+Add case STBTT_MS_EID_SYMBOL to swith in file imstb_truetype.h on line 1440.
+
+Hot fix for open curved fonts mainly on MAC
+2148e49f75d82cb19dc6ec409fb7825296ed005c
+viz. https://github.com/nothings/stb/issues/1296
+In file imstb_truetype.h line 1667 change malloc size from:
+vertices = (stbtt_vertex *) STBTT_malloc((m + 1) * sizeof(vertices[0]), info->userdata);
+to:
+vertices = (stbtt_vertex *) STBTT_malloc(m * sizeof(vertices[0]), info->userdata);