Issue #1887: Equipped items do not emit sounds

Added playing of sounds for equipped items (at this moment only for lights).

Signed-off-by: Lukasz Gromanowski <lgromanowski@gmail.com>
As you noticed in later comment it's because inventory paper doll is using NpcAnimation too, and if player has weapon drawn, is fighting h2h, or is in spellcasting state there were issues with sounds, so I've added a check for drawstate.