New underwater tiles

game/modules/tome/data/general/grids/water.lua

game/modules/tome/data/general/objects/egos/amulets.lua

game/modules/tome/data/general/objects/egos/armor.lua

game/modules/tome/data/general/objects/egos/belt.lua

game/modules/tome/data/general/objects/egos/boots.lua

game/modules/tome/data/general/objects/egos/cloak.lua

game/modules/tome/data/general/objects/egos/digger.lua

game/modules/tome/data/general/objects/egos/gloves.lua

game/modules/tome/data/general/objects/egos/heavy-armor.lua

game/modules/tome/data/general/objects/egos/helm.lua

game/modules/tome/data/general/objects/egos/lite.lua

game/modules/tome/data/general/objects/egos/rings.lua

game/modules/tome/data/general/objects/egos/robe.lua

game/modules/tome/data/general/objects/egos/shield.lua

game/modules/tome/data/general/objects/egos/staves.lua

game/modules/tome/data/general/objects/egos/weapon.lua

game/modules/tome/data/general/objects/egos/wizard-hat.lua

...ules/tome/data/gfx/shockbolt/terrain/burnttree_alpha1.png

...ules/tome/data/gfx/shockbolt/terrain/burnttree_alpha2.png

...ules/tome/data/gfx/shockbolt/terrain/burnttree_alpha3.png