Support of WebP format (incl. animations) where not natively available

Will be very great if you will add a support for WebP format. Witch includes loading WebP images and playing the animations.. Like the Fresco library does.

To add support of loading images shouldn't be hard.. the challenge is to add animation playing support.

Tnx.

Start by reviewing Glide's existing image decoding and animation support to identify where WebP handling would fit. Done means loading WebP images, including animated WebP files, and playing their animations as requested.

Written by the indexing model from the issue text.