v1.7.1

• fix OpenMP detection for macOS
• add two-level autoregressive multifidelity GP model via cov_function = ‘ar1_mf_’
• add ‘tweedie’ and ‘tweedie_fixed_p’ likelihoods
• add extended generalized Pareto distributions (likelihoods: ‘gpd’, ‘egpd_power‘, ‘egpd_power_mixture’, ‘egpd_beta’, ‘egpd_power_beta’)
• add hurdle and zero-inflated likelihoods via 'hurdle_', 'zero_inflated_', 'hurdle_regression_', and 'zero_inflated_regression_' (likelihoods: 'hurdle_gamma', 'hurdle_lognormal', 'hurdle_gpd', 'hurdle_egpd_power', 'hurdle_egpd_power_mixture', 'hurdle_egpd_beta', 'hurdle_egpd_power_beta', 'zero_inflated_poisson', 'zero_inflated_negative_binomial', 'zero_inflated_negative_binomial_1', 'hurdle_regression_gamma', 'hurdle_regression_lognormal', 'hurdle_regression_gpd', 'hurdle_regression_egpd_power', 'hurdle_regression_egpd_power_mixture', 'hurdle_regression_egpd_beta', 'hurdle_regression_egpd_power_beta', 'zero_inflated_regression_poisson', 'zero_inflated_regression_negative_binomial', 'zero_inflated_regression_negative_binomial_1')
• rename 'zero_inflated_gamma' likelihood to 'hurdle_gamma' and reparametrize such that the conditional positive mean is related to fixed and random effects instead of the total mean