[WIP] Current GemPy Patches

[AlexanderJuestel]

The following already merged PRs and open issues should be included in a patch to fix some stuff in GemPy

Description

• Changing kwargs for PyVista scalar bars Change kwarg stitle to scalar_bar_args #651
• Fix for export to vtk Error while exporting to vtk: "ValueError: Number of scalars (8000) must match either the number of points (9261) or the number of cells (8000)." #641
• Fix for when coordinate columns are not in dataframe Raise ValueError for missing Coordinates in DataFrame #595
• Update Readme Updated README.md with link to Nilgün paper #596
• Updating Requirements Update optional-requirements.txt #597
• Update visualization_3d.py Update visualization_3d.py #602
• Fixing typos basics minor edits #600
• Fixing broken PyVista import Fix broken PyVista import #611
• No Qt bindings could be found No Qt bindings could be found #634 --> should be fixed through Fix broken PyVista import #611
• Gdal issue when importing raster topography Gdal issue when importing raster topography #568
• environment.yml environment.yml #563
• Geological Map is rotated and Surfaces are not showing in 3D plot Geological Map is rotated and Surfaces are not showing in 3D plot #446
• Confusing mixed release states, pypi vs the release tags vs setup.py Confusing mixed release states, pypi vs the release tags vs setup.py #436
• Code of Conduct for GemPy community interaction Code of Conduct for GemPy community interaction  #395
• Add missing docstrings to all init.py files Add missing docstrings to all __init__.py files  #283
• Conda installer Conda installer #25

Checklist

• My code follows the PEP 8 style guidelines.
• My code uses type hinting for function and method arguments and return values.
• My code contains descriptive and helpful docstrings
  which are formatted per the Google Python Style Guidelines.
• I have created tests which entirely cover my code.
• The test code either 1. demonstrates at least one valuable use case (e.g. integration tests)
  or 2. verifies that outputs are as expected for given inputs (e.g. unit tests).
• New and existing tests pass locally with my changes.