All parameters should be configured through JSON

1. Create JSON files that will help in creation of new pools based on
existing pools configuration.
2. Configure all the pool attributes through JSON file.
3. Validation of the attributes passed in the JSON file.

Modules/VMware.Hv.Helper/Json/Pool/RdsSpec.json

@@ -0,0 +1,27 @@
+{
+    "Base":  {
+                 "Name" : "RdsJson",
+                 "DisplayName":  "TestRDSPS",
+                 "AccessGroup":  "Root",
+                 "Description":  "Testing PS"
+             },
+    "DesktopSettings":  {
+							"enabled": true,
+							"deleting": false,
+							"connectionServerRestrictions": null,
+							"logoffSettings":  null,
+							"displayProtocolSettings": null,
+							"flashSettings": {
+												"quality": "NO_CONTROL",
+												"throttling": "DISABLED"
+											 },
+							"mirageConfigurationOverrides": null
+	                    },
+    "Type":  "RDS",
+    "AutomatedDesktopSpec":  null,
+    "ManualDesktopSpec":  null,
+    "RdsDesktopSpec":  {
+                           "Farm":  "test1"
+                       },
+    "GlobalEntitlementData":  null
+}