Add glm and missing includes/files to CMakeLists

Author: zao

.gitmodules

@@ -7,3 +7,6 @@
 [submodule "dep/imgui"]
 	path = dep/imgui
 	url = https://github.com/ocornut/imgui.git
+[submodule "dep/glm"]
+	path = dep/glm
+	url = https://github.com/g-truc/glm.git

CMakeLists.txt

@@ -18,13 +18,15 @@ include(${PROJECT_SOURCE_DIR}/vcpkg/scripts/buildsystems/vcpkg.cmake)
 
 set(CMAKE_INSTALL_SYSTEM_RUNTIME_DESTINATION ".")
 include(InstallRequiredSystemLibraries)
+add_subdirectory(dep/glm)
 
 set(SIMPLEGRAPHIC_SOURCES
     "config.h"
     "dep/stb/stb_image.h"
     "dep/stb/stb_image_resize.h"
     "dep/stb/stb_image_write.h"
     "engine/common/common.cpp"
+    "engine/common.h"
     "engine/common/console.cpp"
     "engine/common/console.h"
     "engine/common/keylist.h"
@@ -137,6 +139,7 @@ target_compile_definitions(imgui PUBLIC
 target_include_directories(imgui PUBLIC
     dep/imgui
     dep/imgui/backends
+    dep/imgui/misc/cpp
 )
 
 target_link_libraries(imgui PUBLIC
@@ -181,6 +184,7 @@ target_link_libraries(SimpleGraphic
     unofficial::angle::libGLESv2
     fmt::fmt
     glfw
+    glm::glm
     imgui
     LuaJIT::LuaJIT
     re2::re2