feat:encoder with existing lib (#2)

Co-authored-by: Clement <c.boesmier@aptatio.com>
Reviewed-on: #2

include/Program.h

@@ -5,6 +5,8 @@
 #include <ESP8266WiFi.h>
 
 #include "DiscordAPI.h"
+#include "SwitchableEncodeur.h"
+
 
 
 class Program {
@@ -18,8 +20,17 @@ public:
      * Program main loop
      */
     void loop();
-
 private:
+    /**
+     * Encoder object
+     */
+    SwitchableEncodeur* encoder;
+
+    /**
+     * Old encoder position
+     */
+    long oldPosition;
+
     DiscordAPI* discord;
 };