MShock Modded Tileset Series 20

[chaosvolt]

Hnng. This one took a good while. Additionally, dunno whether to remove the old MShock set as @Mshock777 suggested, versus leaving it to them or someone else. If I do so, should I add a separate PR for it, or do so here?

Changes:

• Changed corrosive zombies an aura effect to make them more distinct from fat zombies.
• Made cigarettes and packs sane (no weird boxes containing a box of cigs, anymore).
• Egomassive provided replacement sprites for boots, steeltoed boots, short and long
  ropes, diamonds.

Sprite assignments:

• Bikini bottom
• Nicotine liquid

Sprite additions:

• Go bag
• Survivor duffel bag
• Survivor backpack
• Sombrero
• Straw hat
• Powdered candy sticks
• Boulders (small, medium, large)
• Slavering biter
• Survivor telescope
• Lawn dart (thank you Egomassive)
• Heavy duty flashlights (also thanks to Egomassive)
• Survivor head torches
• Morphine
• Skinny tie
• Black gunpowder bombs
• Thigh-high boots (thanks again Egomassive)
• Tie clip
• Bracelets (copper, silver, gold)

Sprite assignments for currently-pending content:

• Glyph of the eye
• Glyph of the looking-glass
• Swag bag

Sprite additions for currently-pending content:

• Chamomile plant
• Wyrmskin armor
• Mantle of shadows
• Spear of pestilence
• Screecher zombie

[chaosvolt]

...and that is what happens when you get distracted while typing up the title. >w<

[kevingranade]

If the old MShock tileset is outdated enough that it's difficult to play, it should be removed, that should be a separate PR.

[chaosvolt]

Right. I would generally prefer to leave that to the original author, but it was mentioned in #13946 by them.