API OpenBackpack

__NOTOC__
*OpenBackpack() opens the backpack if it was not already open, or sets a flag to affect CloseBackpack()
*CloseBackpack() closes the backpack unless it was already open before OpenBackpack() was called
 backpackWasOpen = OpenBackpack()
 CloseBackpack()
== Returns ==
; backpackWasOpen : Boolean (1 or nil) - Evaluates to true if OpenBackpack detected the backpack was already open and will prevent CloseBackpack() from acting
== See Also ==
* 
* 
== References ==