Rewrite

This will break the recipe in the cookbook cookbook!300 (closed)

New things added

1. uninstall, update, search, list installed packages
2. pkgar
3. protected packages (packages that can't be uninstalled)
4. pkg install lib* will install all packages that start with lib
5. pkg install -a will install everything (same for uninstall)
6. separation between library and CLI/GUI

Some things aren't done yet

1. tests