ENH: ZPF error: pull `build_phase_records` out of the vertex loop (#210)
ENH: ZPF error: pull `build_phase_records` out of the vertex loop (#210)

PhaseRecord objects no longer depend on multi-phase conditions (specifically, `v.X`), so they can be built once per dataset (really once per set of components), rather once per vertex.
PhasesResearchLab/ESPEI