Allow hunt mechanics to have multiple targets

[GregHib]

Nora T Hagg and Sorceress's Garden can target multiple players at once.

TODO:

• Change HuntPlayer NPC, Object & FloorItem to accept a list of target's but also randomly select one and leave it up to the calling code to decide which it wants to use

data class HuntPlayer(
    val mode: String,
    val targets: List<Player>,
    val target: Player
) : Event

Hunting.kt

val targets = getCharacters(npc, players, range, definition)
if (targets.isEmpty()) {
   continue
}
val target = targets.random(seed)
npc.emit(HuntPlayer(mode, targets, target))

spotting:
  type: player
  check_visual: line_of_sight
  check_afk: false
  check_not_to_strong: false
  check_not_combat: false
  check_not_combat_self: false
  check_not_busy: false
  check_afk: false