Qsurface

This release includes a fix for a breaking error as pointed out by evanphilip in 35, in which ini files are not packaged due to a naming error of the manifest file.

This release has no new features and is simply a (re)release. OpenSurfaceSim has been rebranded to Qsurface.

If you have already installed the package through pip, make sure to uninstall the previous release `pip uninstall opensurfacesim` and install the new release `pip install qsurface`, which is the version that will be kept updated.

Another update with fixes following the v.0.1.1 PyPI release.

* Support for the [Qt5Agg](https://pypi.org/project/PyQt5/) backend for interactive plotting.
* Fix for static forest generation in the Union-Find decoder
* Fix for legends not properly showing
* Fix for redrawing of temporary changes to plot objects

For IPython, the GUI of the Tkinter backend is not available. The included `examples.ipynb`, for example, does not produce any figures, but raises an import error. This PR adds support for IPython, and outputs each iteration of the interactive figure as a separate image.

Additional fixes for the Pauli error legend and missing figures.