add version argument for writing gene expression to hdf5

[szcf-weiya]

I noticed that the current package has introduced version argument, along with other new arguments in the addMatToArrow function,

ArchR/R/ArrowWrite.R

Lines 105 to 126 in 65968a4

	.addMatToArrow <- function(
	mat = NULL,
	ArrowFile = NULL,
	Group = NULL,
	binarize = FALSE,
	addRowSums = FALSE,
	addColSums = FALSE,
	addRowMeans = FALSE,
	addRowVars = FALSE,
	addColMeansLog2 = FALSE, #New
	addRowMeansLog2 = FALSE, #New
	addRowVarsLog2 = FALSE,
	addRowMeansGeo = FALSE, #New
	addRowVarsGeo = FALSE, #New
	addRowSumsBinary = FALSE, #New
	addColSumsBinary = FALSE, #New
	addRowMeansLog2Norm = FALSE, #New
	addRowVarsLog2Norm = FALSE, #New
	scaleTo = 10000, #New
	colSm = NULL, #New
	logFile = NULL,
	version = 2 #New

but the higher-level function addGeneExpressionMatrix does not support passing those new arguments.

This pull request aims to provide the option to use the hdf5 style of the old version (version = 1).