[WIP] Started creating the event store and refactoring on parameters
[WIP] Basic working event store. Parameter edition was deactivated for now.
[WIP] Improved event store and made group events added from template editable using the event store
Finished event store and refactoring in InstructionSelectorDialog
Removed useless deprecated dialogs
Fixed LayerVisible condition
Merge pull request #60 from 4ian/feature-event-store

Added the Event Store, which offers event templates shared on GDevApp.com