Add Clone method to Waveform struct

[sean-moore3]

I think this would be a nifty add in:

public Waveform Clone()
{
    Waveform clone = this;
    clone.Data = Data.Clone();
    clone.BurstStartLocations = (int[])BurstStartLocations.Clone();
    clone.BurstStopLocations = (int[])BurstStopLocations.Clone();
    return clone;
}