Add #swift3 to gerritbot

Change-Id: I5dd5ba0a86dbfb83f5770f0a6926fe270e497fdc

accessbot/channels.yaml

@@ -182,6 +182,7 @@ channels:
   - name: striker-dev
   - name: surveil
   - name: swiftonfile
+  - name: swift3
   - name: syscompass
     mask: full_mask
   - name: tacker

gerritbot/channels.yaml

@@ -1520,6 +1520,16 @@ surveil:
     branches:
       - master
 
+swift3:
+    events:
+      - patchset-created
+      - change-merged
+      - x-vrif-minus-2
+    projects:
+      - stackforge/swift3
+    branches:
+      - master
+
 swiftonfile:
     events:
       - patchset-created