Revert "Issue #1887: Equipped items do not emit sounds"

This reverts commit 566211e7532e1b30f3429b7c0f06198c4f9fdf50.
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>