Add session, client and server with the promise result API

src/defs/index.ts

@@ -0,0 +1,19 @@
+import { cmds, cmdsById } from './commands.ts';
+import { consts, constsById } from './constants.ts';
+import { encodings } from './encodings.ts';
+import { errors, errorsById } from './errors.ts';
+import { tlvs, tlvsById } from './tlvs.ts';
+import { types } from './types.ts';
+
+export const defs = {
+	cmds,
+	cmdsById,
+	consts,
+	constsById,
+	encodings,
+	errors,
+	errorsById,
+	tlvs,
+	tlvsById,
+	types,
+};