Large objects/files in arkasData may need to be removed

[arcolombo]

for my branch in arkasData I removed the kallisto index objects .kidx (not sure if this is OK ?)

also these sqlite objects may need to be removed.

= 9L, :
storing paths of more than 100 bytes is not portable:
‘arkasData/inst/extdata/Libraries/RepDbLite.Mmusculus.2012/inst/extdata/RepDbLite.Mmusculus.2012.sqlite’
Warning in utils::tar(filepath, pkgname, compression = "gzip", compression_level = 9L, :
storing paths of more than 100 bytes is not portable:
‘arkasData/inst/extdata/Libraries/RepDbLite.Mmusculus.2103/inst/extdata/RepDbLite.Mmusculus.2103.sqlite’

currently looking for a way to compress a SQL-lite file