Default parameter change (#197)

Reducing jetstress run time and mailbox database size default and switching default test type to ExchangeMailboxProfile

Author: jacobb42

jetstress-2013-exchange-loadtest/azuredeploy.parameters.json

@@ -6,13 +6,13 @@
             "value": 4
         },
         "testExecutionTimeInMinutes": {
-            "value": 60
+            "value": 15
         },
         "numberOfThreads": {
             "value": "AutoSeek"
         },
         "testType": {
-            "value": "DiskSubsystemThroughput"
+            "value": "ExchangeMailboxProfile"
         },
         "storageDiskCapacityPercentage": {
             "value": 80
@@ -27,7 +27,7 @@
             "value": 10
         },
         "exchangeMailboxSizeInMB": {
-            "value": 200
+            "value": 100
         }
     }
-}
+}