foundryup clone for installing supersim

[tynes]

Ideally there is a standard way for installing supersim. We don't need to reinvent the wheel here - `foundryup works great for foundry. The main benefits of this approach over things like homebrew:

• Can install any commit, even from forks
• Optimized for hackers/contributors - if somebody wants to share a patch, they can give a command that instantly installs it on another machine

This could be called supersimup or something like that

[jakim929]

good point! this will be added soon