Change corpse weight to reflect race

[TheFanciestChocolates]

As in the title, change corpse items to have a weight representative of the racial weight.

Specifically: https://www.realmshelps.net/charbuild/races/index.shtml

Humans/Half-Elves/Planetouched: 120-150
Elves: 85-100lbs
Halflings: 25-35lbs
Gnomes: 40lbs
Dwarves: 120-150
Half-Orcs: 150

[Irongron]

I've often been frustrated by my half-orc's inability to carry 30 dead halflings with him. Approved (if it's not too much effort, it's not exactly pressing).

[Batrachophrenoboocosmomachia]

This has been completed.