Provide reload and graceful commands to eggdrop service
Summary:
- reload to send a SIGHUP signal (kill -1)
- graceful to send a SIGQUIT signal (kill -3)
Ref T1323
Test Plan: Tested with Aeschere, Weag and Dæghrefn
Reviewers: dereckson
Reviewed By: dereckson
Maniphest Tasks: T1323
Differential Revision: https://devcentral.nasqueron.org/D1945