s3s

s3s is used at run time in 4 crates (of which 1 optionally).

Depender (with downloads and own rev deps)			s3s version
2.1K	2	s3s-fs		^0.10.1
1.8K	2	s3s-aws		^0.10.1
		local_s3		^0.10
		htsget-test	optional	^0.10