Changes

Summary

1. make TinkerSmeltery optional (details)

Commit 8674272afad321977452764a64765f3e5e21b7cd by asiekierka make TinkerSmeltery optional
	src/main/java/tconstruct/world/TinkerWorld.java (diff)
	src/main/java/tconstruct/tools/TinkerTools.java (diff)
	src/main/java/tconstruct/smeltery/TinkerSmeltery.java (diff)
	src/main/java/tconstruct/tools/TinkerToolEvents.java (diff)
	src/main/java/tconstruct/smeltery/TinkerSmelteryEvents.java (diff)