support installing rye to the project using a wrapper script

[DetachHead]

tools like pyprojectx and gradle support being installed and run with a wrapper script, which is a script in the project root that gets committed which allows anybody to start working on your repo even if they don't have rye installed.

the script could be called rw or something, and users can run ./rw rye sync which will automatically install rye and then run the sync command

[KotlinIsland]

This X1000, it's easily the best part of working with Gradle or python projects with px

[DetachHead]

it should also install rye to a gitignored directory in the project root, like pyprojectx does. that would also solve #995