Service may not be supervised, in this case the ssexec_stop function do not find the service to remove and its requiredby dependencies and refuse to remove the service. Whatever the state of the service, the service must be removed.

add servicedir entry at live addon. Add enabled at configuration group entry. Move status entry from path to live addon

use tmpfs directory as service directory for the runtime. Deal with logger destination directory at init time

simplify interface of service_is_g and its functionality, provide service_get_treename as replacement

This option come from previous behavior. It not the role of enable process
to deal with parse option.
Also, this change allow user to quickly switch between trees without the need
to force a parse process.
The necessary field at resolve file of the service is now handled by enable
process.