Hot patch (#93)

OPAL-393 (Fix calls to get_file_system when no S3_ENDPOINT exists) (#89)

* Fixed required usage of S3 filesystems

* Clean up redundant code

* Update version number

* removed unneeded filesystem check

Fixed missing skipif (#75)

Merge pull request #66 from 309thEDDGE/validate-test-fix

Fixed tests that check for multiple warnings

Merge pull request #26 from 309thEDDGE/OPAL-1079-V2

OPAL-1079 minor update

Merge pull request #24 from 309thEDDGE/o1086v2

version number to 0.3.0

Merge pull request #3 from 309thEDDGE/add_readme

Add readme