Add Degree Trigonometry question generator to the math engine

## Overview

Being able to mentally convert binary helps Computer Science students. 

## Implementation Details

Consult [Boltz's Implementation](https://github.com/ArsalaBangash/Boltz-Android/blob/7351e3c15a9a4344c4fb89e5ea480ce5fe3c3ddf/app/src/main/java/com/arsalabangash/boltz/practice/challenge/DegreeTrigChallenge.kt)