Merge branch 'nifty2jax' into 'NIFTy_8'

.gitlab-ci.yml

demos/getting_started_6_nifty2jax.py

demos/more/bernoulli_map.py

demos/more/convolution.py

demos/more/density_estimation.py

demos/more/model_comparison.py

demos/more/parametric_variational_inference.py

demos/more/polynomial_fit.py

demos/more/variational_inference_visualized.py

demos/re/banana.py

demos/re/banana_w_reg.py

demos/re/categorical_L1.py

demos/re/correlated_field_w_known_spectrum.py

demos/re/correlated_field_w_unknown_factorizing_spectra.py

demos/re/correlated_field_w_unknown_spectrum.py

demos/re/graph_refine.py

demos/re/hmc_multimodality.py

demos/re/hmc_nuts_trajectories.py

demos/re/hmc_wiener_filter.py

demos/re/lognorm_w_hmc.py