S3 client to be able to customize

[ksss]

I have an idea.
Tori::Backend::S3 client to be able to customize when initialize.
Default case as in the past.

custom_backend = Tori::Backend::S3.new(
  bucket: 'somebucket',
  client: Aws::S3::Client.new(access_key_id: 'aaa', secret_access_key: 'bbb'),
)

How about you @kirikiriyamama ?

[kirikiriyamama]

It's so cool 💎 I approve its way.

[ksss]

Thanks ;)