Better error message on incorrect asset label

[stepancheg]

Objective

When you have no idea what to put after # when loading an asset, error message may help.

Solution

Add all labels to the error message.

Test plan

Modified anti_alias example to put incorrect label, the error is:

2024-01-08T07:41:25.462287Z ERROR bevy_asset::server: The file at 'models/FlightHelmet/FlightHelmet.gltf' does not contain the labeled asset 'Rrrr'; it contains the following 25 assets: 'Material0', 'Material1', 'Material2', 'Material3', 'Material4', 'Material5', 'Mesh0', 'Mesh0/Primitive0', 'Mesh1', 'Mesh1/Primitive0', 'Mesh2', 'Mesh2/Primitive0', 'Mesh3', 'Mesh3/Primitive0', 'Mesh4', 'Mesh4/Primitive0', 'Mesh5', 'Mesh5/Primitive0', 'Node0', 'Node1', 'Node2', 'Node3', 'Node4', 'Node5', 'Scene0'

[alice-i-cecile]

Really nice: this has frustrated me in the past.

[mockersf]

on a realistic gltf file, that is probably going to be a very long and not that useful list of labels

[rlidwka]

on a realistic gltf file, that is probably going to be a very long and not that useful list of labels

I believe the list is always useful, at least having it is definitely more useful than not having it.

It can be long though, so it might be a good idea to cap the number of visible entries (e.g. collect at most of 32 of them).

[JMS55]

I'd be fine limiting it to 32 with a ... At the end. But I'd also be fine printing the whole thing. I think more debug info is useful for errors vs less, even if it's extremely verbose.