Add docker script to turn ceu into a binary file.

[alochaus]

Why

Compiling Céu on Fedora 38 can be problematic, especially because the required Lua version is not available in the repository. So I decided to make a docker script to compile Céu for me, but little did I know that Céu was actually a Lua script. ☠️

Solution

Recognizing that a static binary could simplify the execution of Céu, I started to look for a Graal-like VM for Lua until I stepped into a project that's been archived called srlua, which glues Lua scripts with a LuaVM into a single and static binary.

That said, I should also mention that the ceu-script is only 414.6 KiB while ceu-bin is 1.8 MiB, which is aproximately 4.5 times bigger but you should also take into account that in this way you won't need a LuaVM to run the code.

1b181a9: Add docker script to turn ceu into a binary file.

This commit adds the following rules to makefile:
	* docker-build: builds the docker container.
	* docker-install:
		- creates a shared directory called bin in the repository root;
		- installs srlua (project responsible for converting lua scripts into binary files);
		- builds the binary and outputs to `bin`.

How to build

make docker-build && make docker-install