load_STARsolo_data: Make monocle3 cell_data_set using STARsolo
In scfurl/m3addon: This package adds to the popular "monocle3"

This function reads a vector of STARsolo "out" folders for .mtx and .tsv files. This function will create a cds of the data using cellranger thresholds for filtering out droplets that do not contain cells. Optionally, this function can return the unfiltered data as well for further manipulation (ie adjustment of droplet thresholds) if desired.

load_STARsolo_data(
  folders,
  samplenames = NULL,
  unfiltered = F,
  empty.droplet.threshold = 15,
  expressed_genes = TRUE,
  count_method = "Gene",
  cell_min = 1
)

`folders`	A vector of STARsolo folders (full folder name is ideal). These must contain an "outs" subfolders with three files: 1) features.tsv, 2) barcodes.tsv, and 3) matrix.mtx.
`samplenames`	An optional vector that corresponds to the names you would like to give to each element in filelist.
`unfiltered`	This parameter, if true, returns a list containing 1) the filtered cds, 2) a list of unfiltered cds for each sample in 'folders'.
`empty.droplet.threshold`	minimum number of umis per droplet to include in unfiltered output (default 15)
`expressed_genes`	If true, this option removes genes that do not have expression in at least a minumum number of cells (cell_min parameter)
`count_method`	(required) - A string denoting STARsolo output counting method. (one of either: Gene, GeneFull, SJ, Velocyto)
`cell_min`	Minimum number of cells that a gene needs to be expressed for the gene to be included in the