Nek5000 conjugate heat transfer example with ADIOS2
Following Nek5000 Conjugate Heat Transfer Tutorial: https://nek5000.github.io/NekDoc/tutorials/conjht.html
Adapted to use ADIOS2 based off NekDCTB instructions: https://kth-nek5000.github.io/NekDCTB/pages/installation.html
The cht2d directory should be located at NekDCTB/example/cht2d https://github.com/KTH-Nek5000/NekDCTB/tree/dev_yi