add buildOptions to module.json

Author: adashen

content/dotnet-template-azure-iot-edge-module/CSharp/module.json

@@ -11,7 +11,8 @@
                 "arm32v7": "./Dockerfile.arm32v7",
                 "windows-amd64": "./Dockerfile"
             }
-        }
+        },
+        "buildOptions": []
     },
     "language": "csharp"
 }

content/dotnet-template-azure-iot-edge-module/FSharp/module.json

@@ -11,7 +11,8 @@
                 "arm32v7": "./Dockerfile.arm32v7",
                 "windows-amd64": "./Dockerfile"
             }
-        }
+        },
+        "buildOptions": []
     },
     "language": "fsharp"
 }