Add flow number configuration and UI input for rotating machine

rotatingMachine.html

@@ -25,6 +25,7 @@
           shutdown: { value: 0 },
           cooldown: { value: 0 },
           machineCurve : { value: {}},
+          flowNumber : { value: 1, required: true },
 
           //define asset properties
           uuid: { value: "" },
@@ -127,6 +128,10 @@
     <label for="node-input-cooldown"><i class="fa fa-clock-o"></i> Cooldown Time</label>
     <input type="number" id="node-input-cooldown" style="width:60%;" />
   </div>
+  <div class="form-row">
+    <label for="node-input-flowNumber"><i class="fa fa-clock-o"></i> Flow Number</label>
+    <input type="number" id="node-input-flowNumber" style="width:60%;" />
+  </div>
 
   <!-- Asset fields injected here -->
   <div id="asset-fields-placeholder"></div>