Change BasePath to resolve detectiontemplate validation

Author: shashankshah-contrast

Solutions/ContrastADR/Data/Solution_ContrastADR.json

@@ -34,7 +34,7 @@
   "Solutions/ContrastADR/Workbooks/ContrastADR_Untrusted_Deserialization_Workbook.json",
   "Solutions/ContrastADR/Workbooks/ContrastADR_XML External_Entity_Injection_Injection_Workbook.json"
   ],
-  "BasePath": "./",
+  "BasePath": "C:/Github/Azure-Sentinel/Solutions/ContrastADR",
   "Version": "3.1.0",
   "Metadata": "SolutionMetadata.json",
   "TemplateSpec": false,