Add tests/integration/object/bucket/quota, covering both quota behaviors
from the legacy testObjectStoreOperations on OBCs of its own: user quota
via the OBC maxObjects additionalConfig (enforced, then raised and
re-enforced, synced on the ObjectBucket reflecting the new limit) and
bucket quota via bucketMaxObjects switched to bucketMaxSize. It runs
against the shared store in both the TLS and non-TLS passes.
Drop the converted S3-access and bucket-quota blocks from the legacy test;
the main OBC now exists only as a dependents fixture for the store
deletion checks.
Signed-off-by: Joshua Hoblitt <josh@hoblitt.com>