Draft: Resolve #3556464: Integration with Canvas 'video' prop shape

This is proof of concept work, isn't meant as a complete solution. Needs tests, reviews and potentially changes to make it work with changes in https://www.drupal.org/project/acquia_dam/issues/3551419

Tested on latest 1.x of Canvas and seems to work as intended - I was able to select Acquia DAM video assets and see them rendered as prop sources for video SDC component of canvas_sdc_test submodule and in a basic code component I've made.

Closes #3556464