Adds missing Transport methods

Author: spacenate

libraries/Bluefruit52Lib/src/services/BLEMidi.cpp

@@ -160,6 +160,15 @@ err_t BLEMidi::begin(void)
 
   return ERROR_NONE;
 }
+  
+bool BLEMidi::beginTransmission(MIDI_NAMESPACE::MidiType type)
+{
+  return true;
+};
+
+void BLEMidi::endTransmission()
+{
+}
 
 /*------------------------------------------------------------------*/
 /* Callbacks

libraries/Bluefruit52Lib/src/services/BLEMidi.h

@@ -35,6 +35,8 @@
 #ifndef BLEMIDI_H_
 #define BLEMIDI_H_
 
+#include <MIDI.h>
+
 #include "bluefruit_common.h"
 #include "utility/adafruit_fifo.h"
 
@@ -74,6 +76,9 @@ class BLEMidi: public BLEService, public Stream
     void setWriteCallback(midi_write_cb_t fp);
     void autoMIDIread(void* midi_obj);
 
+    bool beginTransmission(MIDI_NAMESPACE::MidiType type);
+    void endTransmission();
+
     // Stream API for MIDI Interface
     virtual int    read       ( void );
     virtual size_t write      ( uint8_t b );