This function is to get a handset of a set and calculate the kappa
getHandCT(full.ct, handSetLength, handSetBaserate, as_kappa = TRUE)
This is the set to take a handset of
This is the length of the handset to take
This is the minimum baserate to inflate the handset to
If FALSE then return the handSet, if TRUE (default) return the kappa of the handSet
The function returns the handSet if returnSet is TRUE or the kappa of the handSet if not