Exodus support

[RemDelaporteMathurin]

This is an attempt at fixing #5.

• ✅ Read mesh
• ✅ Read meshtags (cells, facets)
• ✅ Read point data
• ✅ Read cell data

Example file:
thermal_steady_out.zip

[RemDelaporteMathurin]

@jorgensd @finsberg I think this is ready for review. I would really like to see if we could add read_function for exodus files as it would allow us to read MOOSE results files.

[jorgensd]

@jorgensd @finsberg I think this is ready for review. I would really like to see if we could add read_function for exodus files as it would allow us to read MOOSE results files.

Following the link you provided in the description, we can add a read_point_data and `read_cell_data’ function that can read P-k Lagrange data (data associated with mesh nodes) or piecewise continuous data (per cell).

[RemDelaporteMathurin]

@aprilnovak kindly provided a Cardinal/MOOSE output containing cell-data 🙏

[jorgensd]

@aprilnovak kindly provided a Cardinal/MOOSE output containing cell-data 🙏

Awesome, thanks alot @aprilnovak! Now I just have to make a nice way to download data for tests. @finsberg this is your speciality, no?;)

[RemDelaporteMathurin]

Now I just have to make a nice way to download data for tests.

@finsberg I wrote two tests and downloaded files with urllib.request, let me know if that's ok with you

[RemDelaporteMathurin]

Thanks so much @jorgensd @finsberg for the review and help, and @aprilnovak @stephen-dixon for guidance towards relevant files 🚀