Turret Mod Rebirth

Minecraft 1.12.x update. Please backup old worlds, as they will delete any pre-existing turrets (even in item form) due to the way turrets are coded now!

new features:

• added Forcefield Turret
• added Forcefield Turret upgrades
• added Personal Shield upgrade

bugfixes:

• fixes Turret Assembly occasionally consuming twice the resources

changes:

• changes Laser Turret sound, it was just too obnoxious. The new sound is also better fitting
• upgrade descriptions
• collision on turrets now only apply to players to prevent building a "wall" of deactivated turrets
• major internal changes to the benefit of the Turret Mod API. This will delete any pre-existing turrets, though, so be careful!