v0.7.2

Release Notes

• Fix getcoeff() behavior for DictStorage term sums. PauliSum was affected by this and had slow lookup.
• Add commutator between two VectorPauliSums
• In-place propagation without return, i.e., new_psum = propagate!(circuit, psum, params) now has the final results in psum, not only new_psum. Now new_psum === psum. Similarly for truncate!() and merge!().
• Implement extractsum!() in PropagationBase as the intended way of extracing the active main sum on a propagation cache.
• Standardize == and \approx for all AbstractTermSum.
• Implement mult!() for propagation caches.
• Implement merge() and truncate()