doc(main): update documentation and flows

dist/devices/gateway/GatewayMessage.js

@@ -0,0 +1,30 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+class GatewayMessage {
+    constructor(raw) {
+        Object.assign(this, raw);
+        if (raw.port) {
+            this.port = parseInt(raw.port);
+        }
+        if (raw.data) {
+            this.data = JSON.parse(raw.data) || raw.data;
+        }
+        this.timestamp = +new Date;
+    }
+    isHeartbeat() {
+        return this.cmd === "heartbeat";
+    }
+    isIam() {
+        return this.cmd === "iam";
+    }
+    isGetIdListAck() {
+        return this.cmd === "get_id_list_ack";
+    }
+    isReadAck() {
+        return this.cmd === "read_ack";
+    }
+    isReport() {
+        return this.cmd === "report";
+    }
+}
+exports.GatewayMessage = GatewayMessage;