[NetApp Files] Bug Fix volumeGroups tag, backup properties creationDate and examples (Azure#17157)

* Fix volumeGroups tag, bakcup properties creationDate and examples

* Fix Staging model validations

* Example ref

Author: audunn

specification/netapp/resource-manager/Microsoft.NetApp/stable/2021-08-01/examples/Accounts_CreateOrUpdate.json

@@ -15,7 +15,7 @@
             "domain": "10.10.10.3",
             "dns": "10.10.10.3, 10.10.10.4",
             "smbServerName": "SMBServer",
-            "organizationalUnit": "Engineering",
+            "organizationalUnit": "OU=Engineering",
             "aesEncryption": true,
             "ldapSigning": false,
             "ldapOverTLS": false

specification/netapp/resource-manager/Microsoft.NetApp/stable/2021-08-01/examples/Accounts_Get.json

@@ -23,7 +23,7 @@
               "dns": "10.10.10.3, 10.10.10.4",
               "status": "InUse",
               "smbServerName": "SMBServer",
-              "organizationalUnit": "Engineering",
+              "organizationalUnit": "OU=Engineering",
               "statusDetails": "Status Details",
               "aesEncryption": true,
               "ldapSigning": true

specification/netapp/resource-manager/Microsoft.NetApp/stable/2021-08-01/examples/Accounts_Update.json

@@ -3,7 +3,7 @@
     "subscriptionId": "D633CC2E-722B-4AE1-B636-BBD9E4C60ED9",
     "resourceGroupName": "myRG",
     "accountName": "account1",
-    "api-version": "2020-11-01",
+    "api-version": "2021-08-01",
     "body": {
       "tags": {
         "Tag1": "Value1"
@@ -23,6 +23,9 @@
       }
     },
     "202": {
+      "headers": {
+        "Location": "https://management.azure.com/subscriptions/D633CC2E-722B-4AE1-B636-BBD9E4C60ED9/providers/Microsoft.NetApp/locations/eastus/operationResults/a0216c17-f9d6-4b99-9faf-9ebd4883d0e4?api-version=2021-08-01&operationResultResponseType=Location"
+      },
       "body": {
         "id": "/subscriptions/D633CC2E-722B-4AE1-B636-BBD9E4C60ED9/resourceGroups/myRG/providers/Microsoft.NetApp/netAppAccounts/account1",
         "name": "account1",

specification/netapp/resource-manager/Microsoft.NetApp/stable/2021-08-01/examples/BackupPolicies_Update.json

@@ -40,6 +40,9 @@
       }
     },
     "202": {
+      "headers": {
+        "Location": "https://management.azure.com/subscriptions/D633CC2E-722B-4AE1-B636-BBD9E4C60ED9/providers/Microsoft.NetApp/locations/eastus/operationResults/18c499e1-2a3c-441c-950e-4b456c991c18?api-version=2021-08-01&operationResultResponseType=Location"
+      },
       "body": {
         "id": "/subscriptions/D633CC2E-722B-4AE1-B636-BBD9E4C60ED9/resourceGroups/myRG/providers/Microsoft.NetApp/netAppAccounts/account1/backupPolocies/backupPolicyName",
         "name": "account1/backupPolicyName",

specification/netapp/resource-manager/Microsoft.NetApp/stable/2021-08-01/examples/Backups_Update.json

@@ -26,6 +26,9 @@
       }
     },
     "202": {
+      "headers": {
+        "Location": "https://management.azure.com/subscriptions/D633CC2E-722B-4AE1-B636-BBD9E4C60ED9/providers/Microsoft.NetApp/locations/eastus/operationResults/18c499e1-2a3c-441c-950e-4b456c991c18?api-version=2021-08-01&operationResultResponseType=Location"
+      },
       "body": {
         "id": "/subscriptions/D633CC2E-722B-4AE1-B636-BBD9E4C60ED9/resourceGroups/myRG/providers/Microsoft.NetApp/netAppAccounts/account1/capacityPools/pool1/volumes/volume1/backups/backup1",
         "name": "account1/pool1/volume1/backup1",