Move package_name and service_name higher for visibility

first parameters are values used by the module itself. grouping them
should make parameters more readable.

Signed-off-by: Gabriel Filion <gabster@lelutin.ca>
Manage agents.conf

Signed-off-by: Gabriel Filion <gabster@lelutin.ca>
Manage static agents via asterisk::agent

Signed-off-by: Gabriel Filion <gabster@lelutin.ca>
Default values in params uselessly.

queue_options gets merged with the hash in params so we don't need it as
a default value.

modules_global_options is an empty hash. there's no need to place that
into params.

Signed-off-by: Gabriel Filion <gabster@lelutin.ca>