installer: Remove packages that come as dependencies of others

Signed-off-by: Sebastian Schuberth <sschuberth@gmail.com>
installer: Move our own packages to the bottom of the list

Signed-off-by: Sebastian Schuberth <sschuberth@gmail.com>
installer: Add msys-vim as a recommended package

Signed-off-by: Sebastian Schuberth <sschuberth@gmail.com>