Containerised Ceedling

[JoseAmador95]

Hi!

I made this Containerfile that can install the pre-release versions of Ceedling in an OCI container.

This may overlap with the Dockerfile in MadScienceLabDocker, but I've made my script to be an actual Ceedling installation. As in, using the ceedling keyword should (containers, Am I right?) have the same behaviour as a local installation.

Similar to MadScienceLabDocker, my image only has the GCC toolchain to reduce its footprint.

https://github.com/JoseAmador95/ceedling_container/tree/main

Running make all does get the latest pre-release version, install it under /usr/local/bin, and test the installation.