add methods for uploading parts

[z0mb1ek]

Hi. I see comment:

When possible you should seriously consider using uploadLargeFile() instead of reimplementing that logic. If there's a reason you can't use those methods, let us know. Perhaps we can improve things together to meet your needs.

I want to create backend for uploading files with Tus(tus.io)
It would be great sdk has methods for uploads part with refreshing authorisation logic inside

[certainmagic]

I think this is actually a vote for #96. Do you agree?

[z0mb1ek]

yes