This significantly speeds up DispVM creation for large customized homes, since no data has to be copied, and instead CoW is used.
Renamed qubes-mount-home service and mount-home.sh script to qubes-mount-dirs service and mount-dirs.sh. Because mount-home.sh also processed /rw/usrlocal. preparation to fix the following issues: - upstream bind-directories functionality to Qubes - https://phabricator.whonix.org/T414 - Bind mount /rw/usrlocal -> /usr/local instead of symlink - https://github.com/QubesOS/qubes-issues/issues/1150 - /bin/sync hangs forever in whonix-ws-dvm - https://github.com/QubesOS/qubes-issues/issues/1328