Almost half of tests failing

[roman-khimov]

Current Behavior

106+141 tests failing out of 531:
https://http.fs.neo.org/7ZVSQHtioVRiDT2btN9xEmQhczXV9vryCEAHUawfD8Sc/10-/index.html

Expected Behavior

Green. Some parts of the API are known to be unsupported:
https://github.com/nspcc-dev/neofs-s3-gw/blob/master/docs/aws_s3_compat.md

While some can be bugs.

Possible Solution

Suppress unsupported things, create issues for problems in supported cases.

[evgeniiz321]

All tests that were without special marks (fails_on_aws/fails_on_dbstore) were analyzed, relevant bugs were opened. For special marks, additional issues were opened.