CI: check each commit separately for build and code format

check-ci-settings.sh: use check-merge-branch.sh and remove duplicate code

check-merge-branch: check if repo is shallow - before using --unshallow.
Fixes error with multiple invocation of this script - in the same repo

PetscBinaryIO.py: add support for scipy's npz format

$ python $PETSC_DIR/lib/petsc/bin/PetscBinaryIO.py convert matrix.npz

now produces `matrix.petsc`.

https://docs.scipy.org/doc/scipy/reference/g

PetscBinaryIO.py: add support for scipy's npz format

$ python $PETSC_DIR/lib/petsc/bin/PetscBinaryIO.py convert matrix.npz

now produces `matrix.petsc`.

https://docs.scipy.org/doc/scipy/reference/generated/scipy.sparse.save_npz.html
https://docs.scipy.org/doc/scipy/reference/generated/scipy.sparse.load_npz.html#scipy.sparse.load_npz

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Merge remote-tracking branch 'origin/release'

Minor housekeeping

Merge branch 'release'

docs: LANG=en_US triggers python utf-8 errors

Build: filter out -fvisibility=hidden in compiling and linking kokkos files.

Merge remote-tracking branch 'origin/release'

Ensure no leading white spaces in front of .seealso:

clang-format: support "make clangformat PETSCCLANGFORMAT=clang-format-16" and not use from PATH

Also support:

export PETSCCLANGFORMAT=clang-format-16
make clangformat

or:

make clangformat CLANGFO

clang-format: support "make clangformat PETSCCLANGFORMAT=clang-format-16" and not use from PATH

Also support:

export PETSCCLANGFORMAT=clang-format-16
make clangformat

or:

make clangformat CLANGFORMAT=/location/of/clang-format

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Remove no longer needed make rules for make allmanpages

Commit-type: housekeeping

Merge remote-tracking branch 'origin/release'

Move doc/classic materials to doc/manualpages

Update scripts and makefiles to process them in the new locations

Stop make lint on Barry's laptop Python 11, llvm 16 not error with

Unknown template argument kind 350

It is not clear that lint is finding all problems that the CI version finds on Barry's laptop

Merge branch 'barry/2023-07-30/doc-better-blas-thread-usage' into 'main'

Start of PETSc benchmarking object

See merge request petsc/petsc!6772

Merge remote-tracking branch 'origin/release'

Add PetscBench with implementation based on HPL

Fix capitalization of fortran

Commit-type: housekeeping

Merge remote-tracking branch 'origin/release'

Fix typos

Rename rules.doc and rules.utils because GitLab treats the former as a MS Word document.

Thanks-to: Jed Brown

Remove DIRS variable and unneeded tabs from all makefiles since no longer needed

Commit-type: housekeeping

Change building documents to not require DIRS value in each makefile