Generalized XenAutoLootPet.psc
Generalized XenAutoLootPet.psc, so that it isn't an actual implementation
for a Mod.
Now XenAutoLootPet.psc needs to be imported, to be able to be used.

Signed-off-by: Ritchie Flick <xenplex@gmail.com>
Added check if NPC is dead
Added a check if the NPC is dead or not, before the pet moves to it.

Signed-off-by: Ritchie Flick <xenplex@gmail.com>
Added check
Added an additional check to see if the NPC isn't the player or the
AutoLootPet

Signed-off-by: Ritchie Flick <xenplex@gmail.com>