MINIO PY 7.x fixes

[networkjackbb]

I had to make the following changes to the minio.py data_backend to match up with changes in Minio API 6 => 7

• from minio.error import (InvalidResponseError)

• from minio.error import (InvalidResponseError)
• from minio.deleteobjects import DeleteObject

rm_many()

    try:

•          for del_err in self.client.remove_objects(self.bucket_name, uids):
    try:
  

•          delete_object_list = []
  

•          for delete_uid in uids:
  

•              delete_object_list.append(DeleteObject(delete_uid))
  

•          for del_err in self.client.remove_objects(self.bucket_name, delete_object_list):
  

[networkjackbb]

I forgot the minio.error changes. Removed BucketAlreadyOwnedByYou and BucketAlreadyExists from the minio.error import line.