added Communicator (a class to communicate with a raspberry)

APED/app/src/main/java/com/example/aped/communication/Communicator.java

@@ -0,0 +1,35 @@
+package com.example.aped.communication;
+
+import java.io.File;
+
+import kotlin.NotImplementedError;
+
+public class Communicator implements IIO{
+    private String address;
+    private int port;
+
+    public Communicator(String address, int port){
+        this.address = address;
+        this.port = port;
+    }
+
+    @Override
+    public String read(String deviceName) {
+        throw new NotImplementedError();
+    }
+
+    @Override
+    public String write(String deviceName, String value) {
+        throw new NotImplementedError();
+    }
+
+    @Override
+    public int uploadXML(File xmlFile) {
+        throw new NotImplementedError();
+    }
+
+    @Override
+    public int downloadXML() {
+        throw new NotImplementedError();
+    }
+}