MARG (Magnetic, Angular Rate, and Gravity) orientation estimation

⚠️ Work in progress. ⚠️

This crate provides MARG IMU orientation estimation based on TRIAD DCM-estimation and Kalman Filtering techniques. It is aimed at no_std environments and type-generic.

Work in progress: The estimator currently requires an allocator to construct the internal filters and is generally considered work in progress.