Python interface to access OGS mesh

Following properties of a MeshLib::Mesh can be accessed by the OGSMesh python wrapper:

• coordinates of the mesh nodes
• cell information (vtk cell types and the node ordering are used)
• properties assigned to MeshItemType::Node and MeshItemType::Cell can be read
• properties assigned to cells can be set
• properties assigned to nodes/points can be set

1. Feature description was added to the changelog
2. Tests covering your feature were added?
   • functionality will be tested using FINAM
3. Any new feature or behavior change was documented?

ToDo

• Python ctest