Net standard 2 and net6 compatibility

Also prevents aws sdk dependency leaking

v1.0.0: Merge pull request #20 from JankwareDotCom/develop

FP-17 - AWS Config + Version Bump

v1.0.0pre-211041613-70a9c1b

Merge pull request #18 from JankwareDotCom/feature/FP-17-more-s3-conf…

v0.1.3

Merge pull request #13 from JankwareDotCom/bugfix/returned-streams-sh…
…ould-not-return-from-using

fix for streams returning disposed

v0.1.2pre

Update publish.yml