intermediate, untested: move channel handling out of main

lib/channel/GwChannelList.h

@@ -0,0 +1,43 @@
+#pragma once
+#include <functional>
+#include <vector>
+#include <WString.h>
+#include "GwChannel.h"
+#include "GwLog.h"
+#include "GWConfig.h"
+#include "GwJsonDocument.h"
+
+//NMEA message channels
+#define N2K_CHANNEL_ID 0
+#define USB_CHANNEL_ID 1
+#define SERIAL1_CHANNEL_ID 2
+#define TCP_CLIENT_CHANNEL_ID 3
+#define MIN_TCP_CHANNEL_ID 4
+
+#define MIN_USER_TASK 200
+class GwSocketServer;
+class GwTcpClient;
+class GwChannelList{
+    private:
+        GwLog *logger;
+        GwConfigHandler *config;
+        typedef std::vector<GwChannel *> ChannelList;
+        ChannelList theChannels;
+        
+        GwSocketServer *sockets;
+        GwTcpClient *client;
+        String serialMode=F("NONE");
+    public:
+        GwChannelList(GwLog *logger, GwConfigHandler *config);
+        typedef std::function<void(GwChannel *)> ChannelAction;
+        void allChannels(ChannelAction action);
+        //initialize
+        void begin(bool fallbackSerial=false);
+        //status
+        int getJsonSize();
+        void toJson(GwJsonDocument &doc);
+        //single channel
+        GwChannel *getChannelById(int sourceId);
+
+
+};