feat(brew): Automatically install and maintain brew package list (#347)

[mecattaf]

Let me know if you want me to make any changes, to comply with the coding standards of the modules project!
Corresponds to #347

Thanks,
T

[fiftydinar]

Some initial thoughts before fully testing this

[fiftydinar]

Suggested change

	echo "The following Brew packages will be installed when the system is live:"
	echo "The following Brew packages will be installed when system is booted:"

[fiftydinar]

This condition makes this execute only once.

It should execute every boot, to install packages from updated install list over time. If there are no packages, it will just say Package \$package is already installed.

To make logs more sane in this scenario (when there are no new packages to install),
instead of printing this echo for every package, it should print once: Installed packages are up-to-date with install list, no changes need to be done

[xynydev]

This should be just a file in the module's directory that is cp'd in place. Having it inline doesn't work with syntax highlighting and shellcheck.

[mecattaf]

FYI I will not be working on this module further because I have found that the only program offered by homebrew (ollama) runs slower than when installed using other methods. Feel free to close, or to keep open for another user to fix.
Thanks,
T