AugmentationProperties: add defaultQueryFilters

This commit adds a defaultQueryFilters field to AugmentationProperties
and incorporates its value into the augmented Code Scanning config.
However, in this commit defaultQueryFilters is always empty, so there is
not yet any actual behavior change.

src/codeql.ts

@@ -1274,6 +1274,15 @@ async function generateCodeScanningConfig(
   if (Array.isArray(augmentedConfig.packs) && !augmentedConfig.packs.length) {
     delete augmentedConfig.packs;
   }
+
+  augmentedConfig["query-filters"] = [
+    ...(config.augmentationProperties.defaultQueryFilters || []),
+    ...(augmentedConfig["query-filters"] || []),
+  ];
+  if (augmentedConfig["query-filters"]?.length === 0) {
+    delete augmentedConfig["query-filters"];
+  }
+
   logger.info(
     `Writing augmented user configuration file to ${codeScanningConfigFile}`,
   );