C#: Add binlog support to buildless with source generator support

csharp/codeql-extractor.yml

@@ -65,3 +65,9 @@ options:
             - progress+++
         type: string
         pattern: "^(off|errors|warnings|(info|progress)|(debug|progress\\+)|(trace|progress\\+\\+)|progress\\+\\+\\+)$"
+  binlog:
+    title: Binlog
+    description: >
+      [EXPERIMENTAL] The value is a path to the MsBuild binary log file that should be extracted.
+      This option only works when `--build-mode none` is also specified.
+    type: string