NNCheckboxes v1.4.0.3

Removed parent entity configuration parameter as the product bug is fixed
Fix the issue where you cannot add multiple instances of the PCF control
Updated color of checkboxes label to fit with form labels color
Improved relationship detection to ensure possibility to associate/disassociate records
Updated configuration of the PCF to select display layout with an enumeration (checkboxes/switches)
Changed logo of the PCF to see the rendered layout