Default: New mese texture. Add missing texture credits

[paramat]

Mese texture is a classic-mese-yellow version
of celeron55's texture used in MTv0.4.0
Add missing texture credits for mese crystal
and mese crystal fragment
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^ Submitted

^ Current mese crystal for comparison

^ Classic mese textures by celeron55 used in Minetest 0.4.0

As requested by PilzAdam and sfan5 this has normal lettering.
The letters are raised areas of a single piece of pure material, instead of being seperate from the material, so are only visible due to edge-shine and shadows.
Shadows are very similar to the shadows used in the mese crystal texture.
The texture is faithful to the classic mese textures, being a combination of the two.

[p5yk0g3n3s1s]

Yeah...this seems like a good compromise.

[benrob0329]

What if it was a bit darker of a yellow (like the Mese crystal) and the shading was darker to match?

I may be wrong but I fell like it'll look weird in dark areas.

[Ekdohibs]

@paramat What if you kept this texture, but with the colors of the current mese texture?

[paramat]

Nope, this is a pure yellow like the crystal and the original, i'm not keen on adding a dirty surface using noise, that's too metallic. I very much dislike the current texture.

[benrob0329]

The crystal isn't pure yellow though, it has a greenish tint.

[Thomas--S]

How about this as a compromise?

It wouldn't be such an extreme yellow, but it looks quite similar to @paramat's suggestion.

[paramat]

That's good, the bright yellow is moved to the highlights and it's even closer to celeron55's texture.
I'll consider something very similar.

[paramat]

Updated with a texture inspired by Thomas--S's suggestion. See first post for preview.

[benrob0329]

+100 !!

[paramat]

Updated with in-game screenshots, see first comment, i'm happy with this and PR is ready for review/merge.

[Ekdohibs]

Seems good now!

[paramat]

So happy you like it.

[paramat]

541b2d7