BarMixer: Hashed scRNA-seq demultiplexing for .h5 files

Read the /matrix from a .h5 file as a sparse matrix

read_h5_dgCMatrix(
  h5_file,
  target = "matrix",
  feature_names = "id",
  sample_names = "barcodes",
  index1 = TRUE
)

`h5_file`	the path to an .h5 file in 10x Genomics format
`target`	a character object specifying the target matrix within the file. Default is "matrix".
`feature_names`	a character object specifying whether to use "id" or "name" for row.names. Default is "id".
`sample_names`	a character object specifying which values to use for col.names. If "barcodes", will use /target/barcodes. Other values will be read from /target/observations/
`index1`	a logical object specifying whether index vectors should start with 0 (FALSE) or 1 (TRUE). Default is TRUE.