Fix for Share DeleteIfExists/Exists Error Live tests (#33284)

* Fix for share exists live tests

* Create Share before attempt to delete with share only SAS

* Create Share for the exists error tests too

Author: amnguye

sdk/storage/Azure.Storage.Files.Shares/tests/FileTestBase.cs

@@ -115,7 +115,10 @@ public SasQueryParameters GetNewAccountSasCredentials(StorageSharedKeyCredential
             return builder.ToSasQueryParameters(sharedKeyCredentials ?? Tenants.GetNewSharedKeyCredentials());
         }
 
-        public SasQueryParameters GetNewFileServiceSasCredentialsShare(string shareName, StorageSharedKeyCredential sharedKeyCredentials = default)
+        public SasQueryParameters GetNewFileServiceSasCredentialsShare(
+            string shareName,
+            StorageSharedKeyCredential sharedKeyCredentials = default,
+            ShareSasPermissions permissions = ShareSasPermissions.All)
         {
             var builder = new ShareSasBuilder
             {
@@ -125,7 +128,7 @@ public SasQueryParameters GetNewFileServiceSasCredentialsShare(string shareName,
                 ExpiresOn = Recording.UtcNow.AddHours(+1),
                 IPRange = new SasIPRange(IPAddress.None, IPAddress.None)
             };
-            builder.SetPermissions(ShareSasPermissions.All);
+            builder.SetPermissions(permissions);
             return builder.ToSasQueryParameters(sharedKeyCredentials ?? Tenants.GetNewSharedKeyCredentials());
         }