Clean project structure.

src/audio/midi/MidiTrack.cpp

@@ -1,35 +0,0 @@
-#include "MidiTrack.h"
-
-#include "MidiEvent.h"
-
-MidiTrack::MidiTrack()
-{
-
-}
-
-MidiTrack::~MidiTrack()
-{
-
-}
-
-void MidiTrack::AddEvent(MidiEventPtr event)
-{
-    mEvents.push_back(std::move(event));
-}
-
-MidiEvent* MidiTrack::GetEvent(std::size_t idx) const
-{
-    return mEvents[idx].get();
-}
-
-std::size_t MidiTrack::GetNumEvents()
-{
-    return mEvents.size();
-}
-
-std::string MidiTrack::Serialize() const
-{
-    std::string output = "MidiTrack\n";
-    output += "Num Events: " + std::to_string(mEvents.size()) + "\n";
-    return output;
-}