Update config.yml

Update with NetherfactoryConfig
Update plugin.yml
Update FactoryModPlugin.java
Update FactoryObject.java
Update BaseFactory.java
Create NetherFactory.java
Update FactoryModListener.java
Update FactoryModManager.java
Create NetherFactoryManager.java
Update ProductionManager.java
Create NetherFactoryProperties.java
Update InteractionResponse.java
Update ItemList.java
Merge pull request #71 from jjj5311/master

Nether Factory Backend