Is it a bug if the JUnit Annotations are used in parent classes

**Describe the bug**
It seems likely that using test classes which inherit from other test classes which both use JUnit annotations would confuse their storage of state. Right now the annotations use the test class name, which would not be unique if used twice. This happens in the [ExtenionBase](https://github.com/eeverman/andhow/blob/0effe4dac390fc8eb2ac11456017f0432fd9e340/andhow-junit5-extensions/src/main/java/org/yarnandtail/andhow/junit5/ext/ExtensionBase.java#L5) class.