Formatting fixes, Background images and viewport control buttons
- migrate to psyplot-plugin-template, see `!64 <https://codebase.helmholtz.cloud/psyplot/psy-view/-/merge_requests/64`__
- set minimum version for psyplot to 1.5.0
- Background image options, see `!65 <https://codebase.helmholtz.cloud/psyplot/psy-view/-/merge_requests/65`__
- add buttons to control the viewport, , see `!66 <https://codebase.helmholtz.cloud/psyplot/psy-view/-/merge_requests/66`__
Compatibility fixes and LGPL license
- psy-view is now compatible with psyplot 1.4.0
- psy-view does now have a CITATION.cff file, see https://citation-file-format.github.io
- psy-view is now officially licensed under LGPL-3.0-only, see #58
- Documentation is now hosted with Github Pages at https://psyplot.github.io/psy-view. Redirects from the old documentation at https://psy-view.readthedocs.io have been configured.
- We use CicleCI now for a standardized CI/CD pipeline to build and test the code and docs all at one place, see #57
- The plotmethod tabs have now a more intuitive gridlayout (see #46)
- When closing the mainwindow of psy-view now, one closes all open windows (i.e. also the open figures, see #47)