Add support for multiple light bars/remotes (#3), bump to version 0.2

remote.h

@@ -0,0 +1,34 @@
+#ifndef REMOTE_H
+#define REMOTE_H
+
+#include "constants.h"
+#include "radio.h"
+
+class Radio;
+
+class Remote
+{
+public:
+    Remote(Radio *radio, uint32_t serial, const char *name);
+    ~Remote();
+
+    uint32_t getSerial();
+    String getSerialString();
+    const char *getName();
+
+    bool registerCommandListener(std::function<void(Remote *, byte, byte)> callback);
+    bool unregisterCommandListener(std::function<void(Remote *, byte, byte)> callback);
+
+    void callback(byte command, byte options);
+
+private:
+    Radio *radio;
+    uint32_t serial;
+    const char *name;
+    String serialString;
+
+    std::function<void(Remote *, byte, byte)> commandListeners[constants::MAX_COMMAND_LISTENERS];
+    uint8_t numCommandListeners = 0;
+};
+
+#endif