lvm: install thin tools, only when needed in hostonly
i18n: introduce i18n_install_all, to install everything

if i18n_install_all is set to "yes", then install all keyboard layouts
and fonts regardless of the hostonly setting.

This way, people can switch keyboard layouts, without having to recreate
the initramfs.
dracut.spec: add new modules
dracut.spec: remove suse man pages