Sprite model manifest and sprite instance preparation improvements

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• Migrations have been added if applicable (migrations are always necessary for removing/renaming item asset files)
• Significant changes of this merge request have been added to the changelog.

This includes some performance improvements for sprite processing when preparing to render a chunk and some changes to the sprite manifest format. This also adds more checks/tests for a few errors that can happen such as missing sprites.

See commit message for a few more details.

changed the description

MR discussion has been started by discord user imbris here

Nice stuff

approved this merge request

added 1 commit

• 1a179e36 - Remove filter scoring and remove a comment that appears to be obselete

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resolved all threads

added 5 commits

• 1a179e36...9641b487 - 2 commits from branch veloren:master
• ab67495e - Remove unnecessary pub on a module
• 12d6f06f - Sprite model manifest and sprite instance preparation improvements
• 427fff99 - Remove filter scoring and remove a comment that appears to be obselete

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added this merge request to the merge train at position 2

changed the description

mentioned in commit 79cb3eda

merged