[read-only][issue #25] ajout de /var/lib/{ntp,pyheatpump} dans les dossier à mettre dans le tmpfs

config/read-only-fs.sh

 replace /etc/fstab "ext4\s*defaults,noatime\s" "ext4    defaults,noatime,ro "
 append1 /etc/fstab "/var/log" "tmpfs /var/log tmpfs nodev,nosuid 0 0"
 append1 /etc/fstab "/var/tmp" "tmpfs /var/tmp tmpfs nodev,nosuid 0 0"
+append1 /etc/fstab "/var/lib/ntp" "tmpfs /var/tmp tmpfs nodev,nosuid 0 0"
+append1 /etc/fstab "/var/lib/pyheatpump" "tmpfs /var/tmp tmpfs nodev,nosuid 0 0"
 append1 /etc/fstab "/run" "tmpfs /var/run tmpfs nodev,nosuid 0 0"
 append1 /etc/fstab "\s/tmp"   "tmpfs /tmp    tmpfs nodev,nosuid 0 0"