Added imgui_freetype.cpp to MSVC project file to fix broken build. #98425

Job	Run time
skip-duplicates-code	5s
skip-duplicates-code	5s
skip-duplicates-data	6s
skip-duplicates-data	6s
matrix-variables	1s
matrix-variables	1s
Basic Build and Test (Clang 10, Ubuntu, Curses)	1h 6m 32s
Basic Build and Test (Clang 10, Ubuntu, Curses)	1h 12m 59s
Clang 14, macOS 12, Tiles, Sound, x64 and arm64 Universal Binary	1s
Clang 14, macOS 12, Tiles, Sound, x64 and arm64 Universal Binary	45m 4s
GCC 9, Curses, LTO	1s
GCC 9, Curses, LTO	1s
Clang 12, Ubuntu, Tiles, ASan	1s
Clang 12, Ubuntu, Tiles, ASan	1s
GCC 11, Ubuntu, Curses, ASan	1s
GCC 11, Ubuntu, Curses, ASan	1s
GCC 12, Ubuntu cross-compile to MinGW-Win64, Tiles, Sound	1s
GCC 12, Ubuntu cross-compile to MinGW-Win64, Tiles, Sound	1s
GCC 9, Ubuntu, Tiles, Sound, CMake	1s
GCC 9, Ubuntu, Tiles, Sound, CMake	1s
emscripten	0s
emscripten	0s
	3h 5m 10s

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