Add slogging projects

Current slogging is managed in Swift PTL’s GitHub.
I’ve discussed in Dublin PTG and decide migrate
this repository as one of OpenStack project.
This change aims to proceed this activity.

Change-Id: I0bd145283c2f0aa4b652b534db9f040607102116

gerrit/acls/openstack/slogging.config

@@ -0,0 +1,11 @@
+[access "refs/heads/*"]
+abandon = group slogging-core
+label-Code-Review = -2..+2 group slogging-core
+label-Workflow = -1..+1 group slogging-core
+
+[receive]
+requireChangeId = true
+requireContributorAgreement = true
+
+[submit]
+mergeContent = true

gerrit/projects.yaml

@@ -6124,6 +6124,9 @@
   description: RackHD and OpenStack Coordinator
 - project: openstack/shovel-horizon
   description: Shovel plugin for OpenStack Horizon dashboard
+- project: openstack/slogging
+  description: A stats system for OpenStack Swift
+  upstream: https://github.com/keiichi-hikita/slogging
 - project: openstack/snap-ceilometer
   description: Snap package for Ceilometer
   acl-config: /home/gerrit2/acls/openstack/snaps.config

gerritbot/channels.yaml

@@ -1885,6 +1885,7 @@ openstack-swift:
     - openstack/liberasurecode
     - openstack/pyeclib
     - openstack/python-swiftclient
+    - openstack/slogging
     - openstack/swift
     - openstack/swift-bench
     - openstack/swift-specs

zuul/main.yaml

@@ -1189,6 +1189,7 @@
           - openstack/shotgun
           - openstack/shovel
           - openstack/shovel-horizon
+          - openstack/slogging
           - openstack/snap-ceilometer
           - openstack/snap-cinder
           - openstack/snap-glance