Fixed Crash in BlockExtensionsAPI.DefinitionExtensionsAPICore.TerminalControls_CustomControlGetter

Reverted due to crash

Improved usability, mod now uses the Keen control for selecting the LCD Panel.
Slight bug fix to remove the Null GameLogic component when a component is added via the DefinitionExtension API.

Implemented a workaround to fix an issue where MyGameLogicComponent.Entity can become Null unexpectedly for certain block types.