CUQI-DTU/CUQIpy: v1.5.0

What's Changed enable FD for JointDistribution by @amal-ghamdi in https://github.com/CUQI-DTU/CUQIpy/pull/692 Move new samplers out of experimental module and put old samplers at legacy module by @chaozg in https://github.com/CUQI-DTU/CUQIpy/pull/693 Config Sphinx to display links to source codes by @chaozg in https://github.com/CUQI-DTU/CUQIpy/pull/700 Enable general observation function for PDE, and accessing original solution (or other observable quantities) by @amal-ghamdi in https://github.com/CUQI-DTU/CUQIpy/pull/625 Add online thinning to HybridGibbs by @chaozg in https://github.com/CUQI-DTU/CUQIpy/pull/707 Move algebra and _ProductGeometry to main cuqi library by @amal-ghamdi in https://github.com/CUQI-DTU/CUQIpy/pull/702 Add GMRF to acceptable priors in PCN sampler by @amal-ghamdi in https://github.com/CUQI-DTU/CUQIpy/pull/712 Make thinning in sampler consistent with samples by @chaozg in https://github.com/CUQI-DTU/CUQIpy/pull/711 Reduce step size of MALA in unit test on online thinning by @chaozg in https://github.com/CUQI-DTU/CUQIpy/pull/717 Rename Python files to follow PEP 8 naming conventions by @Copilot in https://github.com/CUQI-DTU/CUQIpy/pull/715 fix issue with repeated progress bar printing in CUQI book by @amal-ghamdi in https://github.com/CUQI-DTU/CUQIpy/pull/718 update demos by @chaozg in https://github.com/CUQI-DTU/CUQIpy/pull/720 update name and documentation of config variable PROGRESS_BAR_DYNAMIC_UPDATE by @amal-ghamdi in https://github.com/CUQI-DTU/CUQIpy/pull/721 Fix progress bar 3rd time by @amal-ghamdi in https://github.com/CUQI-DTU/CUQIpy/pull/725 Update Pypi trigger in yaml by @chaozg in https://github.com/CUQI-DTU/CUQIpy/pull/727 Regroup demos and fix numpy compatibility issue by @chaozg in https://github.com/CUQI-DTU/CUQIpy/pull/728 New Contributors @Copilot made their first contribution in https://github.com/CUQI-DTU/CUQIpy/pull/715 Full Changelog: https://github.com/CUQI-DTU/CUQIpy/compare/v1.4.1...v1.5.0