Everything Is Moving!

Add support for 26.1

• Update to include 1.21.10 textures

Because of changes to Resource Packs in 1.21.5, this update is only for 1.21.5 and later. Older versions can still use older releases.

Update to 1.20.5

• Update to 1.20.4

Update pack format to 15

Note: this will have an error message if using an older version of the game, but that can be ignored