[WIP] Fix loop bounds in selectActualNeighbors

[atmyers]

The proposed changes:

• fix a bug or incorrect behavior in AMReX
• add new capabilities to AMReX
• changes answers in the test suite to more than roundoff level
• are likely to significantly affect the results of downstream AMReX users
• include documentation in the code and/or rst files, if appropriate

[atmyers]

/run-hpsf-gitlab-ci

[github-actions]

GitLab CI has started at https://gitlab.spack.io/amrex/amrex/-/pipelines/1318332.

[WeiqunZhang]

terminate called after throwing an instance of 'std::runtime_error'
  what():  CUDA error 805 in file /builds/amrex/amrex/Src/Base/AMReX_GpuDevice.cpp line 191: MPS client failed to connect to the MPS control daemon or the MPS server

This is the runner's issue. We have been seeing that from time to time.

[atmyers]

I saw it as well while I was testing on Frank.

[amrex-gitlab-ci-reporter]

GitLab CI 1318332 finished with status: failed. See details at https://gitlab.spack.io/amrex/amrex/-/pipelines/1318332.