Enums defined in classes should result in two relations

[BenediktMehl]

As a user I want to have to two relations if there is an enum defined in ClassA and used by ClassB. The first relation goes from ClassB to ClassA the second relation goes from ClassB to ClassA.Enum.

This Issue resulted from issue #372

DOD:

• The test "for enums" in c-sharp-metric.test.ts is green
• There are green tests related to this Issue for all other supported languages

[BenediktMehl]

Lets talk about this again in the next Daily