Merge branch 'jacobf/2022-09-02/modernize-petscinfo' into 'main'

Clean up and modernize PetscInfo()

See merge request petsc/petsc!5582

Print the string needed to control the section with info output

Merge branch 'jed/promote-examples-tests-tutorials' [petsc/petsc!2610]

* jed/promote-examples-tests-tutorials:
Promote examples/{tests,tutorials}/ to {tests,tutorials}/