Hi devs,
in attachment a patch for the inclusion of an  R/Bioconductor library named
"scran" https://bioconductor.org/packages/release/bioc/html/scran.html ,
scran has a lot of dependencies and I placed those related to
bioinformatics/bioconductor into bioinformatics.scm and those related just
to R insto statistics.scm.
There are a total of 11 new R libraries in this patch and the most
complicated is the r-rhdf5 where I had to modify a bit the original
installation because it contains a sub_tar_archive ( I had a brief
discussion with Rekado on irc - I saw your message/replay today- ).


Let me know if this big-patch is acceptable or how do I need to submit it.

Thanks a lot.

Raoul