Thumbnails: Create thumbnail from stream

[iLLiCiTiT]

Changelog Description

Allow to create thumbnail from file stream.

Additional review information

Extend the functionality of thumbnail upload so it is possible to use byte stream to upload thumbnail instead of filepath.
This PR gave me the idea that we should support this ynput/ayon-core#1510 .

Testing notes:

1. Download thumbnail using get_thumbnail_by_id and then create new thumbnail using create_thumbnail_with_stream.
2. Thumbnail is uploaded.

Example snippet

import io
import ayon_api


project_name = "..."
src_folder_id = "..."
dst_folder_id = "..."
src_folder_entity = ayon_api.get_folder_by_id(project_name, src_folder_id)
src_thumbnail = ayon_api.get_folder_thumbnail(
    project_name,
    src_folder_entity["id"],
    src_folder_entity["thumbnailId"]
)
stream = io.BytesIO(src_thumbnail.content)
thumbnail_id = ayon_api.create_thumbnail_with_stream(project_name, stream)
ayon_api.update_folder(project_name, folder_id, thumbnail_id=thumbnail_id)