Enabling fusion by default

Tools/Sentinel-All-In-One/ARMTemplates/azuredeploy.json

@@ -70,7 +70,7 @@
             "metadata": {
                 "description": "Enable Fusion analytics rules"
             },
-            "defaultValue": false
+            "defaultValue": true
         },
         "enableMicrosoftAlerts": {
             "type": "bool",