Separate permission to access my results overview page from view my results permission

Problem/Motivation

As anonymous user I can view other anonymous user's quiz answers as mine.

Steps to reproduce

Create questions inside a quiz.
Give permission for anonymous to view results, so after a quiz, if filled he can see what he answered correctly and what not.
Fill out the quiz once in one window once in another window (both cases as anonymous)
Under my results, I will see both as anonymous.

Proposed resolution

The My results overview page should be on different permission, than the entity view. So we can disallow certain roles to view all their results in a view but after they filled the question they can view what mistake they did.

Remaining tasks

Implement.

User interface changes

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API changes

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Data model changes

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