Model SubjuGator's drag

[kev-the-dev]

Determine an accurate model for drag on the Sub. A starting point can be linear drag. Ideally, this process will be automated.

Example usage story:

• Put Sub into water
• Run drag program, which applies forces and observes the max velocity achieved at this force
• When done, the program spits out the linear drag coefficient for x, y, z, pitch, roll, and yaw.