Added a metrics table

[LucaKramer]

Description

Added a Metrics View Table that Lists all Features, with their Scattering Degree, Tangling Degree and Line Count in a table that can be access from the bottom menu next to the Terminal

Related Issue

https://github.com/isselab/HAnS/issues/45

Motivation and Context

How Has This Been Tested?

• [ ] Tests are created and passing
• [x] Manual testing

Screenshots (if appropriate):

Types of changes

• [ ] Pipeline changes
• [ ] Bug fix (non-breaking change which fixes an issue)
• [x] New feature (non-breaking change which adds functionality)
• [ ] Breaking change (fix or feature that would cause existing functionality to change)

Checklist:

• [ ] My code follows the code style of this project.
• [ ] My change requires a change to the documentation.
  • [ ] I have updated the documentation accordingly.
• [x] I have updated the CONTRIBUTORS file.
• [x] I have updated the CHANGELOG.