* upstream/master: (37 commits)
  🔧 Fix unused variables (pyvista#847)
  Add better Unstructured Grid Documentation (pyvista#845)
  Fix typo in plotting.py (pyvista#846)
  Feat: Implement compute_derivative (pyvista#837)
  New probe filter and massively improve interpolate filter (pyvista#842)
  Clarify clip filter docstring (pyvista#840)
  Update create-structured-surface.py (pyvista#844)
  Update topo-map.py (pyvista#841)
  Add release suffix to version string (pyvista#817)
  Add pathlib Support (pyvista#836)
  Add tolerance argument to sample_over_line (pyvista#828)
  vector slice from pyvista/pyvista-support#134 (pyvista#808)
  Fix is_all_triangles (pyvista#832)
  Misc. documentation fixes (pyvista#829)
  Follow up pyvista#793: fix get_data_range (pyvista#818)
  Fix GPU info in scooby report (pyvista#825)
  Patch for auto_close warning (pyvista#798)
  Add texture demo with scalar data (pyvista#821)
  MAINT: Log init start/stop (pyvista#819)
  Add PolyData strip filter (pyvista#807)
  ...