add abstraction layer for webserver

webserver/EthWebServer.h

@@ -0,0 +1,27 @@
+#pragma once
+
+#include "AbstractWebServer.h"
+
+class EthWebServer : public AbstractWebServer
+{
+public:
+    explicit EthWebServer(int port);
+
+    virtual void begin();
+    virtual bool authenticate(const char *username, const char *password);
+    virtual void requestAuthentication(HTTPAuthMethod mode, const char *realm, const String &authFailMsg);
+    virtual void requestAuthentication();
+    virtual void send(int code, const char *content_type, const String &content);
+    virtual void on(const Uri &uri, EthernetWebServer::THandlerFunction handler);
+
+    virtual int args();
+
+    virtual String arg(int i);
+
+    virtual String argName(int i);
+
+    virtual void handleClient();
+
+private:
+    EthernetWebServer _server;
+};