adding copyright info to src/*

src/BayesLine.c

src/BayesLine.h

src/BayesWave.c

src/BayesWave.h

src/BayesWaveCleanFrame.c

src/BayesWaveEvidence.c

src/BayesWaveEvidence.h

src/BayesWaveIO.c

src/BayesWaveIO.h

src/BayesWaveLikelihood.c

src/BayesWaveLikelihood.h

src/BayesWaveMCMC.c

src/BayesWaveMCMC.h

src/BayesWaveMath.c

src/BayesWaveMath.h

src/BayesWaveModel.c

src/BayesWaveModel.h

src/BayesWavePost.c

src/BayesWavePrior.c

src/BayesWavePrior.h