add Charm SL decays
These DEC files with generator acceptance cut are prepared for studying the following charmed baryon SL decays :
\Lambda_c^+\to p K^- \mu^+ \nu\Lambda_c^+\to p \pi^- \mu^+ \nu\Lambda_c^+\to \Lambda \mu^+ \nu\Xi_c^+\to \Lambda \mu^+ \nu\Xi_c^0\to \Xi^{-} \mu^+ \nu\Omega_c^0\to \Xi^{-} \mu^+ \nu\Omega_c^0\to \Omega^{-} \mu^+ \nu
These charmed baryons are from bottom hadrons.
All these DEC files are tested successfully.