join minio-fsn-02 to object storage cluster from minio-01 and create a tiered setup

minio-fsn-02 is stored on HDD so it should be in the "warm" tier (and minio-01 in the "hot" tier)

Steps towards completion. each of those steps also involves adding a bit of documentation to our service/object-storage page so that we can replicate more easily:

1. create policy for lifecycle admin on minio-fsn-02
2. create user on minio-fsn-02 cluster and attach the previously-created policy to the user. save user's secret-key (password) somewhere
3. create bucket in that user for object sync. make sure the user has read/write/list/delete permissions on the bucket
4. find out access-key for the user created in step 2
5. create storage tier in minio-01 cluster with the *-keys found above and attached to the minio-fsn-02 bucket created above
6. test: send some files to the bucket and verify that they land in the minio-fsn-02 cluster instead of minio-01