Update to Chrono v9.0.0

[dariomangoni]

Hi,
if you are interested these are the changes required to update HydroChrono to Chrono v9.0.0 (released few days ago) regarding both the code and the CMakeLists infrastructure as well.
There are also few other fixes about:

• missing CHRONO_DATA_DIR definition
• the sphere_decay_test that I think had a wrong offset in the test reference values
• removed the number of iterations for those tests relying on direct solvers

All tests are running fine (tested only on Win though!)

[MShabara]

I was trying to run HydroChrono with Chrono v8.0, and I encountered these errors:
Do you have any suggestions on how to fix this issue?

I saw your Pull request and cloned your project and used Chrono v9.0, however, I am getting this errors:

The file 'chrono/core/ChMathematics.h' is deleted in Chrono v9.0, this needs to be modified together any other changes in Chrono v9.0 files.

[dariomangoni]

@MShabara: about your issue with Chrono v8 it clearly tells that you did not built Chrono with the required Irrlicht components. Did you?

About this pull request: the first error says that is looking for ChMathematics, but if you look at my code there is no call to such file. Same for Get_y.
Can you please tell me which files are giving such issue? You cut the screenshot.

[MShabara]

Hi @dariomangoni, I did build it with Chrono v.8 with the required Irrlicht components, I did it before in Sept. 2023 and it was working fine, I am not sure what changed.

About this pull request: I cloned your main repo by mistake, not the pr_chrono9. I tried your pr_chrono9 branch with both Chrono v.9 and Chrono main and I was able to build Hydrochrono with both, your pull request was done in a perfect timing.

@dav-og Could you please review this pull request?