Gith-init

Addition to gith, TUI to help setup environments for several frameworks

While working at gith, a TUI git helper, I had to add a check whether the command is run in a valid git repo.

If not it advises to run git init, or change the directory. There I tought, I might create a TUI, that helps all of the automated setup coming after git init, which is usually just searching for a command and installing it, to set the repo up for some specific framework.