get_summary_stats: Internal function that calculates the sufficient statistics...
In bayesmove: Non-Parametric Bayesian Analyses of Animal Movement

An internal function that calculates the sufficient statistics to be used within the reversible-jump MCMC Gibbs sampler called by link{samp_move}.

1	get_summary_stats(breakpt, dat, max.time, nbins, ndata.types)

`breakpt`	numeric. A vector of breakpoints.
`dat`	A matrix that only contains columns storing discretized data for each of the movement variables.
`max.time`	numeric. The number of of the last observation of `dat`.
`nbins`	numeric. A vector of the number of bins used to discretize each movement variable. These must be in the same order as the columns within `dat`.
`ndata.types`	numeric. The length of `nbins`.