KillAndHowBeforeXXX should be an Inherited annotation

**Is your feature request related to a problem? Please describe.**
A user would expect these annotations to be inherited from a super class to a child class, but they currently are not.

**Describe the solution you'd like**
Add \@Inherited to the annotations so they are inherited.

**Additional context**
It may be that JUnit already considers these inherited: https://junit.org/junit5/docs/current/user-guide/#extensions-registration-inheritance
Really need a test example to try this out.

Locate the KillAndHowBeforeXXX annotation declarations and first verify whether JUnit already treats them as inherited using a superclass/subclass test example. Done means the relevant annotations are inherited as requested and the test confirms the behavior.

Written by the indexing model from the issue text.