Add tags to the bastion box.

cloudformation_templates/edx-reference-architecture.json

@@ -1577,6 +1577,19 @@
           {
             "Ref":"BastionSecurityGroup"
           }
+        ],
+        "Tags":[
+          {
+            "Key":"group",
+            "Value":"bastion"
+          },
+          {
+            "Key":"environment",
+            "Value":{
+              "Ref":"EnvironmentTag"
+            },
+            "PropagateAtLaunch":true
+          }
         ]
       }
     },