Begin progress on web gui stub. Make AP-only for now and form post. Would bluetooth from a webapp be better?

ino/contact_printer/WebGUI.cpp

@@ -0,0 +1,26 @@
+#include "WebGUI.h"
+
+void WebGUI::Setup () {
+	
+}
+
+void WebGUI::Loop () {
+	
+}
+
+void WebGUI::HandleNotFound() {
+	String res = "404 Not Found\n\n";
+	res += "URI: ";
+	res += server.uri();
+	res += "\nMethod: ";
+	res += (server.method() == HTTP_GET) ? "GET" : "POST";
+	res += "\nArguments: ";
+	res += server.args();
+	res += "\n";
+
+	for (uint8_t i = 0; i < server.args(); i++) {
+		res += " " + server.argName(i) + ": " + server.arg(i) + "\n";
+	}
+
+	server.send(404, "text/plain", res);
+}

ino/contact_printer/WebGUI.h

@@ -0,0 +1,32 @@
+#ifndef WEBGUI
+#define WEBGUI
+
+#include <Arduino.h>
+#include <WiFi.h>
+#include <WiFiClient.h>
+#include <WiFiAP.h>
+#include <WebServer.h>
+#include <ESPmDNS.h>
+#include <ArduinoJson.h>
+
+class WebGUI {
+	private:
+	const char *AP_SSID = "contact_printer";
+	const char *DEFAULT_PASSWORD = "contact_printer";
+	const char *MDNS_NAME = "contact_printer";
+	//IPAddress wifiIP;
+	//String IP;
+	//DynamicJsonDocument postJSON(1024);
+	WebServer server(80);
+
+	protected:
+	static void HandleNotFound();
+
+	public:
+	WebGUI();
+	void Setup();
+	void Loop();
+
+};
+
+#endif