create_bedfiles ignores gene strand for deletion naming

[guillaumecharbonnier]

For genes on reverse strand, the exons are still numerotated in the forward strand order:

[guillaumecharbonnier]

Here I added a fix for this issue:
https://github.com/guillaumecharbonnier/mw-lib/blob/master/src/python/create_bed_of_all_exon_deletions.py

[lonsbio]

Thank you for raising this issue. That solution looks good. I am scheduled to do an update to Toblerone soon and will revisit then