Feature Request: Support additional options of rsync for copy command

[Leon0402]

Hi,

it would be create if vastai copy command would support additional arguments of rsync. Most notably excluding files! My use case is copying data from local to an instance, but exclude unecessary or big data. Samples

• Checkpoints, which can be multiple GB big
• Git folder
• Virtual environments

Copying to cloud seems to already support this use case. See here https://github.com/vast-ai/vast-python/blob/master/vast.py#L1008.

But it is not implemented for the standard copy command: https://github.com/vast-ai/vast-python/blob/master/vast.py#L912