implement --with-user-log,--with-packager-service,--with-{sys,user}-service,--with-{sys,user}-service-conf

rename environment directory for a daemon to conf from env, place it at the directory of the current user of the process,use the 66-envfile in run file

parser_write: change behaviour for environment variable, do not insist and replace an unexisting file file by

service file is now into a directory, environment of the service is now by default at /etc/66/env/name_of_service