usql updates, lexer changes

CMakeLists.txt

@@ -41,6 +41,8 @@ set(SOURCE
 	usql/lexer.cpp
 	usql/parser.cpp
 	usql/usql.cpp
+	usql/usql_dml.cpp
+	usql/usql_ddl.cpp
 	usql/table.cpp
 	usql/table.h
 	usql/row.cpp