Replace use of VecGetArray() and friends from Fortran examples and docs

Barry Smithrequested to merge
barry/2022-12-27/rm-vecgetarray-fortran-examples into main

Review by commit

  • Put ex5f.F90 back (with VecGetArray fixes) because it is only make check example that uses less than 132 length lines! Curse that stupid Fortran
Edited by Barry Smith

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