Update BLEMIDI_Transport.h

Added new callback for BLE connection that returns the name of the connected device

Author: MicroMidi

src/BLEMIDI_Transport.h

@@ -185,6 +185,7 @@ class BLEMIDI_Transport
 public:
     // callbacks
     void (*_connectedCallback)() = nullptr;
+    void (*_connectedCallbackDeviceName)(char *) = nullptr;
     void (*_disconnectedCallback)() = nullptr;
 
     BLEMIDI_Transport &setName(const char *deviceName)
@@ -199,6 +200,12 @@ class BLEMIDI_Transport
         _connectedCallback = fptr;
         return *this;
     }
+    
+    BLEMIDI_Transport &setHandleConnected(void (*fptr)(char*))
+    {
+        _connectedCallbackDeviceName= fptr;
+        return *this;
+    }
 
     BLEMIDI_Transport &setHandleDisconnected(void (*fptr)())
     {