Add examples for some test cases from the high-fidelity CFD verification workshop 2024

[ranocha]

The workshop website is https://highfidelitycfdverificationworkshop.github.io. Some super- and hyper-sonic test cases are described in the paper https://highfidelitycfdverificationworkshop.github.io/papers/superhypersonic.pdf. One of the test cases needs to be updated as described in https://github.com/HighFidelityCFDVerificationWorkshop/2024SuperHypersonic/blob/main/UpdatedSajbenDiffuser.pdf

[DanielDoehring]

Another good starting point would be the Third International Workshop on High-Order CFD Methods since they provide for most testcases quad/hex meshes of different resolution in gmsh format.