[lib] Add useMediaMetadataUpload hook

Summary:
ENG-9350.

Very similiar to the blob upload action, but it was tough to extract some shared code easily.

Test Plan: Tested together with the next diff

Reviewers: kamil, tomek, ashoat

Reviewed By: ashoat

Subscribers: ashoat

Differential Revision: https://phab.comm.dev/D13500