Benchmarking initial

Description

First version of the benchmarking. Does SIG style benchmarking, and is able to generate a ranking using two tables: one which assigns metric scores into risk categories, and another which assigns relative code weight in each risk category to a total system ranking. Closes #163 (closed)

Changes

None

Additions

• Added a new endpoint /api/v1/assingment/aid/submission/sid/benchmark
• Added benchmarking classes

Test and Review

To be filled in by the reviewers

• All of the methods are commented to expectation

• The methods are tested to satisfaction

• There are no unnecessary files present in the MR

• The continuous integration has no problems with the MR

• The MR is filled in as requested (including labels, milestones, and reviewers)

• The documentation is up-to-date

• All nullable parameters are marked as such