[harm_unit_loti] incinerate/drain/leech

[white-haired-uncle]

Since h_u_l supports slowed and poisoned, it only seems logical that it should support incinerated. Not just because it's perfectly logical, but also because I'm lazy and don't want to code a separate event.

Also, it probably makes sense to add support for drains, leeches, perhaps even something like mind_raid.

I wonder if it is not also the place for things like explosive, explosive_slow, etc. Or maybe those should go in systemd, don't want to get too crazy.