[FEATURE] ♻️ Abstract Movements

[Aang099]

Requested Feature

Abstract motion class that motion algorithms inherit from, similarly to the old refactor.

Motivation

There's a lot of repeated logic in the motion algs of v0.5, especially around async functionality. By having an abstract class, logic repeated across motions can be handled by the base class, making motion algorithms much easier to maintain, and make implementing new motion algorithms much simpler.

This will also enable for motion algorithms logic to be moved away from the Chassis class (see #208), and enables users to make custom motions without changing the LemLib source code.