Merge pull request #10 from knights-analytics/master

fix: bugs in copying folders from s3 to s3

Merge pull request #9 from knights-analytics/fix-delete

Fix leading slashes in keys

patched reader error handling

Merge pull request #7 from knights-analytics/s3-test-imports

Prevent s3 tests for importing google gs dependencies

added auth option deduplication

added debug info

swapped s3 getObject with Head call for get Object info

added gcp presign URL support

add credential error handling

patched bucket detection