Implemented multi listeners of MainController
Multi listeners for Add Core Controller
Converted core list to multiple listeners
Fixed adding cores
Fixed add and edit to commit and reset
Merge branch 'master' of
https://github.com/inpaner/information-asset-registry.git

Conflicts:
	Information Asset Registry/src/controller/AddCoreController.java
	Information Asset Registry/src/controller/CoreListController.java
	Information Asset Registry/src/controller/MainController.java
	Information Asset Registry/src/controller/UpdateCoreController.java
Fixed botched merges