SDL2 Basic Docker Setup

Build sdl2 program in docker image with cmake, run locally in arch-based os.

Quick Start

Compile stuff in the docker container:
```
docker compose up --build
```
- This creates a build-dir directory, runs cmake to configure the build, then runs make to perform the build.
- The compiled file will be in ./build-dir/SDL2Test
Run the compiled program locally:
```
./build-dir/SDL2Test
```
Enter the container to do stuff
```
docker compose run compiler bash
```
Clean up build-dir and build artifacts:
```
sudo rm -rf build-dir
```
Clean up docker container and network:
```
docker compose down
```

References for Setup