Allow system files to be searched (% classes) from non %SYS namespace.

This used to be possible but prior change in intersystems-community#534 made this backwards incompatible change.

Author: Keshav Iyer

src/providers/WorkspaceSymbolProvider.ts

@@ -39,7 +39,7 @@ export class WorkspaceSymbolProvider implements vscode.WorkspaceSymbolProvider {
     const api = this.getApi();
     const direction = "1";
     const orderBy = "1";
-    const systemFiles = "0";
+    const systemFiles = "1";
     const flat = "1";
     const notStudio = "0";
     const generated = "0";