actually add vendor folder

vendor/raylib-cpp/projects/CMake/.gitignore

@@ -0,0 +1 @@
+/build

vendor/raylib-cpp/projects/CMake/CMakeLists.txt

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+cmake_minimum_required(VERSION 3.14)
+project(raylib_cpp_example)
+
+# raylib
+find_package(raylib QUIET)
+if (NOT raylib_FOUND)
+    include(FetchContent)
+    FetchContent_Declare(
+        raylib
+        GIT_REPOSITORY https://github.com/raysan5/raylib.git
+        GIT_TAG 5.0
+        GIT_SHALLOW 1
+    )
+    FetchContent_MakeAvailable(raylib)
+endif()
+
+# raylib-cpp
+find_package(raylib_cpp QUIET)
+if (NOT raylib_cpp_FOUND)
+    if (NOT DEFINED RAYLIB_CPP_VERSION)
+        set(RAYLIB_CPP_VERSION v5.0.2)
+    endif()
+    include(FetchContent)
+    FetchContent_Declare(
+        raylib_cpp
+        GIT_REPOSITORY https://github.com/RobLoach/raylib-cpp.git
+        GIT_TAG ${RAYLIB_CPP_VERSION}
+    )
+    FetchContent_MakeAvailable(raylib_cpp)
+endif()
+
+# This is the main part:
+set(SOURCES main.cpp)
+add_executable(${PROJECT_NAME} ${SOURCES})
+set_target_properties(${PROJECT_NAME} PROPERTIES CXX_STANDARD 11)
+target_link_libraries(${PROJECT_NAME} PUBLIC raylib raylib_cpp)
+
+# Web Configurations
+if (${PLATFORM} STREQUAL "Web")
+    # Tell Emscripten to build an example.html file.
+    set_target_properties(${PROJECT_NAME} PROPERTIES SUFFIX ".html")
+
+    # Required linker flags for using Raylib with Emscripten
+    target_link_options(${PROJECT_NAME} PRIVATE -sEXPORTED_FUNCTIONS=['_main','_malloc'] -sEXPORTED_RUNTIME_METHODS=ccall -sUSE_GLFW=3)
+endif()
+
+# That's it! You should have an example executable that you can run. Have fun!

vendor/raylib-cpp/projects/CMake/README.md

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+# raylib-cpp CMake Example Project
+
+Use this template to build a [raylib-cpp](https://github.com/RobLoach/raylib-cpp) project using [CMake](https://cmake.org).
+
+## Build
+
+To build this project, make sure to have CMake installed locally.
+
+### Desktop
+
+```
+mkdir build
+cd build
+cmake ..
+make
+```
+
+### Web
+
+```
+mkdir build
+cd build
+emcmake cmake .. -DPLATFORM=Web -DCMAKE_BUILD_TYPE=Release
+emmake make
+```
+
+## Run
+
+```
+./raylib-cpp-example
+```

vendor/raylib-cpp/projects/CMake/main.cpp

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+/*******************************************************************************************
+*
+*   raylib-cpp [core] example - Basic window (adapted for HTML5 platform)
+*
+*   This example is prepared to compile for PLATFORM_WEB, PLATFORM_DESKTOP and PLATFORM_RPI
+*   As you will notice, code structure is slightly diferent to the other examples...
+*   To compile it for PLATFORM_WEB just uncomment #define PLATFORM_WEB at beginning
+*
+*   This example has been created using raylib-cpp (www.raylib.com)
+*   raylib is licensed under an unmodified zlib/libpng license (View raylib.h for details)
+*
+*   Copyright (c) 2015 Ramon Santamaria (@raysan5)
+*
+********************************************************************************************/
+
+#include "raylib-cpp.hpp"
+
+#if defined(PLATFORM_WEB)
+    #include <emscripten/emscripten.h>
+#endif
+
+//----------------------------------------------------------------------------------
+// Global Variables Definition
+//----------------------------------------------------------------------------------
+int screenWidth = 800;
+int screenHeight = 450;
+
+//----------------------------------------------------------------------------------
+// Module Functions Declaration
+//----------------------------------------------------------------------------------
+void UpdateDrawFrame(void);     // Update and Draw one frame
+
+//----------------------------------------------------------------------------------
+// Main Enry Point
+//----------------------------------------------------------------------------------
+int main()
+{
+    // Initialization
+    //--------------------------------------------------------------------------------------
+    raylib::Window window(screenWidth, screenHeight, "raylib-cpp [core] example - basic window");
+
+#if defined(PLATFORM_WEB)
+    emscripten_set_main_loop(UpdateDrawFrame, 0, 1);
+#else
+    SetTargetFPS(60);   // Set our game to run at 60 frames-per-second
+    //--------------------------------------------------------------------------------------
+
+    // Main game loop
+    while (!window.ShouldClose())    // Detect window close button or ESC key
+    {
+        UpdateDrawFrame();
+    }
+#endif
+
+    return 0;
+}
+
+//----------------------------------------------------------------------------------
+// Module Functions Definition
+//----------------------------------------------------------------------------------
+void UpdateDrawFrame(void)
+{
+    // Update
+    //----------------------------------------------------------------------------------
+    // TODO: Update your variables here
+    //----------------------------------------------------------------------------------
+
+    // Draw
+    //----------------------------------------------------------------------------------
+    BeginDrawing();
+
+        ClearBackground(RAYWHITE);
+
+        DrawText("Congrats! You created your first raylib-cpp window!", 160, 200, 20, LIGHTGRAY);
+
+    EndDrawing();
+    //----------------------------------------------------------------------------------
+}