openblas: add v0.3.28, drop old versions and patches, add OpenMP and ILP64 support

[valgur]

Summary

Changes to recipe: openblas/[*]

Motivation

The current recipe is missing options for a few core features like OpenMP, ILP64 and the max number of available threads.

This limits its usefulness in libraries that significantly relies on BLAS for linear algebra performance.

Details

Adds latest v0.3.28 and drops all versions v0.3.20 and older, which gets rid of many patches and checks.

Also adds support for all major options in the build system: https://github.com/OpenMathLib/OpenBLAS/blob/develop/docs/build_system.md#important-variables

• OpenMP support.
• ILP64 interface with 64-bit index variables. Needed by some features in SUNDIALS (sundials: add v7.1.1, v6.7.0, v5.8.0, add optional deps, fix CMake names #21664), for example.
• Support for bfloat16.
• Set the max number of threads via a recipe option instead of based on the arbitrary number of cores available during build.

Fixed the exporting of serial/pthread/openmp component.

The value of 128 for the max number of threads was picked based on the value used by Debian and the current upper limit of available cores on consumer-grade hardware. Spack uses a value of 512, for example, but they also mostly target supercomputers.

---

• Read the contributing guidelines
• Checked that this PR is not a duplicate: list of PRs by recipe
• Tested locally with at least one configuration using a recent version of Conan

[valgur]

/cc @samuel-emrys since you seem to be interested in BLAS and LAPACK support on CCI.

[conan-center-bot]

Conan v1 pipeline ✔️

All green in build 4 (48031c91feea358ca3b67206d45c04488d3695c4):

• openblas/0.3.27:
  Built 20 packages out of 22 (All logs)

• openblas/0.3.28:
  Built 20 packages out of 22 (All logs)

• openblas/0.3.26:
  Built 20 packages out of 22 (All logs)

• openblas/0.3.25:
  Built 20 packages out of 22 (All logs)

• openblas/0.3.24:
  Built 20 packages out of 22 (All logs)