v0.5.0 Better mean_skill, avoid extrapolation, more plot arguments

What's Changed

• Force the use of keyword arguments by @ecomodeller in #100
• Allow x_item and y_item arguments when creating TrackObservation by @jsmariegaard in #99
• fix mean skill weights by @jsmariegaard in #102
• Title and other argument in plots by @jsmariegaard in #98
• Test notebooks by @jsmariegaard in #105
• Better reporting by @jsmariegaard in #66
• Improved docs with logo by @jsmariegaard in #93
• catch warnings in pytest by @jsmariegaard in #78
• fix failing in_domain validation for extraction from pandas modelresults by @jsmariegaard in #106
• Mean skill weights as dict by @ecomodeller in #103
• pointwise mean skill by @jsmariegaard in #104
• Fix bug when combining comparers by @jsmariegaard in #101

Full Changelog: v0.4.3...v0.5.0