Added Despawn timer for police, 30 seconds.

-Space police npcs now matches villager level.
-Space police no longer damages villagers.
-Fixed a slight incompatibility with the "Project Redemption" mod, but they're going to keep being incompatible as they do the same thing.

-Tried making police use less resources:
-Reduced conversation list, was too big for an NPC you don't talk to too much.
-Made coptoppolice and megapolice use spacepolice as a base and reduced filesize.

-Fixed Police not using one of the outfit types.
-Police now spawn with a secondary broadsword.
-Police can now spawn with riot shields and Neo weapons.

-Backup is now stronger.
-Police spawning sound volume is lower.

-Fixed Villagers and merchants not calling the police.

-FIxed some code that could cause problems on villagers/merchants.
-Mega Police always spawn with orange Peacekeeper outfit, to signify veterancy or something.