Adds GitHub Workflow to check if project compiles under Ubuntu and Windows

[Ceyron]

Add the suggested CMAKE GitHub workflow to compile the project. This can be a good sanity check that the project is correctly configured for various OS/compiler combinations.

I made the following changes:

1. Commented out the part of running the compiled project. (I guess this will not work since no display is attached to a GH Action worker.)
2. Needed to install some dependencies on Ubuntu

Room for improvement:

• Add a configuration to the matrix that tests on MacOS?

[wi-re]

based on some testing these are all packages that you need to install on a fresh Ubuntu install with wayland to get the project working:

mesa-common-dev
g++
cmake
git
libxkbcommon-dev
wayland-protocols
pkg-config
libwayland-dev
extra-cmake-modules
mesa-utils

Assuming you also install vscode afterwards. Is there a way to test if the project compiles with both wayland and x11 under linux?

[Ceyron]

Good point; I suppose one could add another combination to the test matrix.

Will have to test it.