Add logic to check for inherited PropertyDrawers from base classes and interfaces#48

mackysoft merged 1 commit intomackysoft:mainmackysoft/Unity-SerializeReferenceExtensions:mainfrom

JohannesDeml:bugfix/propertydrawer-allow-inheritanceJohannesDeml/Unity-SerializeReferenceExtensions:bugfix/propertydrawer-allow-inheritanceCopy head branch name to clipboard