add: ffi node api for other languages

- WIP xml script parser

Signed-off-by: Pakin <pakin.t@forth.co.th>

src/xml/mod.rs

@@ -1 +1,6 @@
+pub mod ast;
+pub mod codegen;
+pub mod error;
+pub mod ffi_node;
 pub mod node;
+pub mod parser;