Add Namespace indicator on Function page part of #1379

This is a precursor to adding a dropdown for namespaces
selection (#1379)

Signed-off-by: Alistair Hey <alistair@heyal.co.uk>

gateway/assets/index.html

@@ -126,6 +126,11 @@
                                     <label>Invocation count</label>
                                     <input ng-model="function.invocationCount" type="text" readonly="readonly">
                                 </md-input-container>
+
+                                <md-input-container class="md-block" flex-gt-sm>
+                                    <label>Namespace</label>
+                                    <input ng-model="function.namespace" type="text" readonly="readonly">
+                                </md-input-container>
                             </div>
 
                             <div layout-gt-sm="row">

gateway/assets/script/bootstrap.js

@@ -225,6 +225,7 @@ app.controller("home", ['$scope', '$log', '$http', '$location', '$interval', '$f
                                         $scope.functions[i].image = response.data[j].image;
                                         $scope.functions[i].replicas = response.data[j].replicas;
                                         $scope.functions[i].invocationCount = response.data[j].invocationCount;
+                                        $scope.functions[i].namespace = response.data[j].namespace;
                                     }
                                 }
                             }