WIP: Add shell-completion commands

[nimrod-a]

This PR is a WIP to add a shell-completion command to mvt-ios and mvt-android.

As discussed in #589, there is currently no suitable library to implement this feature without substantial performance impact.

I have therefor created a modified fork of the most popular click autocomplete library (auto-click-auto), which I named quick-click-auto.

You can read more about it here

It still needs some working on, but will hopefully do its job in the near future. I will give an update once I have done some more testing!

[nimrod-a]

Update:

The shell-completion command should work as expected now!
I would be happy about people testing this feature :)

For testing:

git clone -b feature/command_completion_command https://github.com/nimrod-a/mvt.git \
&& cd mvt \
&& python3 -m venv .venv && source .venv/bin/activate \
&& pip install . \
&& mvt-ios shell-completion # or mvt-android

Then reopen the terminal or run a new with bash or `zsh.
Command completion should be enabled now.

It works by:

• Generating the command completion scripts
• Editing the shell configuration to automatically sources the generated files to the shell.

It should not slow down shell responsiveness as much as the eval implementation did, as the scripts are not generated every time the shell is opened.