add support for searching queries

src/systemGenService.ts

@@ -67,7 +67,7 @@ interface Order {
 interface Filter {
   param: string; // the query param used to get the value
   column: ColumnRef;
-  comparison: '=' | '!=' | '>' | '<' | 'contains';
+  comparison: '=' | '!=' | '>' | '<' | 'contains' | 'LIKE';
   required?: boolean;
 }