specify different bandwith and concurrent file upload limit PER (cloud) storage.

### Please make sure of the following things

- [x] I have read the [documentation](https://alistgo.com).
- [x] I'm sure there are no duplicate issues or discussions.
- [x] I'm sure this feature is not implemented.
- [x] I'm sure it's a reasonable and popular requirement.

### Description of the feature / 需求描述

Hi,

some cloud storage like Terabox will cause problems if you try to upload too many files too quickly, it would be nice to set limits for such cloud storage platforms, but keep it different for everyone else.

For now it may seem I need to run two instances of alist to get to where I need to be.

Thanks.

### Suggested solution / 实现思路

_No response_

### Additional context / 附件

_No response_