Network offering UI: Pass 'associatePublicIP' option

If elastic LB service is enabled for a shared network offering, add a
checkbox to associate public IP. This passes new option
'associatePublicIp=[true/false]' on creation.

ui/scripts/configuration.js

@@ -1484,6 +1484,12 @@
                     isHidden: true,                    
                     isBoolean: true
                   },
+                  associatePublicIP: {
+                    label: 'Associate IP',
+                    isBoolean: true,
+                    isHidden: true,
+                    dependsOn: 'service.Lb.elasticLbCheckbox'
+                  },
                   "service.Lb.lbIsolationDropdown": {
                     label: 'label.LB.isolation',
                     isHidden: true,                   
@@ -1604,6 +1610,12 @@
                 } else {
                   inputData['conservemode'] = false;
                 }
+
+                if (inputData['associatePublicIP'] == 'on') {
+                  inputData['associatePublicIP'] = true;
+                } else {
+                  inputData['associatePublicIP'] = false;
+                }
 								
                 // Make service provider map
                 var serviceProviderIndex = 0;