Add zuul config for new project 'osel'
The 'osel' project, for OpenStack Event Listener, is a new project in
it's infancy that listens for certain types of events and engages
external security auditing services in those scenarios.  This change adds a
zuul template for the project.
Depends-On:
jobs:
- legacy-osc-placement-dsvm-functional
+- project:
+ name: openstack/osel
+ templates:
+ - system-required
+ - golang-jobs
+
- project:
name: openstack/oslo-specs
templates:
