PyVista parse_color DeprecationWarning

[AlexanderJuestel]

Describe the bug
GemPy has still implemented the PyVista method parse_color. It is deprecated by PyVista, see pyvista/pyvista#1377

To Reproduce

from pyvista.plotting import parse_color

parse_color('#34d42a')

.....\lib\site-packages\pyvista\plotting\tools.py:622: PyVistaDeprecationWarning: The usage of parse_color is deprecated in favor of the new Color class.
warnings.warn(
(0.20392156862745098, 0.8313725490196079, 0.16470588235294117)

pv.Color('#34d42a')

Color(hex='#34d42aff')
...

Expected behavior
No DeprecationWarning

Solution
Replace parse_color with the new Color class. A PR will be opened as soon as a possible fix is confirmed by the PyVista devs.