Add all BENNC message types with unit tests

src/mapping.ts

@@ -0,0 +1,21 @@
+import { packSubscribeMessage } from './messages/subscribe'
+import { packBasicMessage, unpackBasicMessage } from './messages/basic'
+import { packUserDataRequestMessage, unpackUserDataRequestMessage } from './messages/userDataRequest'
+import { packUserDataResponseMessage, unpackUserDataResponseMessage } from './messages/userDataResponse'
+import { packKeepaliveMessage } from './messages/keepalive'
+import { packUnsubscribeMessage } from './messages/unsubscribe'
+
+export const packers = {
+  0x0000: packSubscribeMessage,
+  0x0001: packBasicMessage,
+  0x0002: packUserDataRequestMessage,
+  0x0003: packUserDataResponseMessage,
+  0x0005: packKeepaliveMessage,
+  0xffff: packUnsubscribeMessage
+}
+
+export const unpackers = {
+  0x0001: unpackBasicMessage,
+  0x0002: unpackUserDataRequestMessage,
+  0x0003: unpackUserDataResponseMessage
+}