Bundle OpenMP (libomp) and libgfortran dylibs for macOS wheels, fix deployment target#4128

kratman merged 41 commits into

pybamm-team:developpybamm-team/PyBaMM:developfrom

agriyakhetarpal:attempt-two-fix-openmp-macos-wheelsagriyakhetarpal/PyBaMM:attempt-two-fix-openmp-macos-wheelsCopy head branch name to clipboard