Resolves #139 Trigger for automations

lib/entity_class/automation_entity.dart

@@ -0,0 +1,24 @@
+part of '../main.dart';
+
+class AutomationEntity extends Entity {
+  AutomationEntity(Map rawData) : super(rawData);
+
+  @override
+  Widget _buildStatePart(BuildContext context) {
+    return SwitchStateWidget();
+  }
+
+  @override
+  Widget _buildAdditionalControlsForPage(BuildContext context) {
+    return Row(
+      mainAxisAlignment: MainAxisAlignment.center,
+      mainAxisSize: MainAxisSize.max,
+      children: <Widget>[
+        FlatServiceButton(
+          text: "TRIGGER",
+          serviceName: "trigger",
+        )
+      ],
+    );
+  }
+}