Fixed Bug #1721

SECURE_NPCTIMEOUT now possesses 3 settings (to mimic official ones)
NPC_SECURE_TIMEOUT_INPUT
NPC_SECURE_TIMEOUT_MENU
NPC_SECURE_TIMEOUT_NEXT
http://hercules.ws/board/tracker/issue-1721-npc-window-timeout/

Signed-off-by: shennetsind <ind@henn.et>