package/bash: bump version to 5.1

package/bash: bump version to 5.1

- removed 0001-bash50-001.patch to 0018-bash50-018.patch

- added 0001-bash51-001.patch, 0002-bash51-002.patch, 0003-bash51-003.patch,
  0004-bash51-004.patch

- moved 0019-input.h-add-missing-include-on-stdio.h.patch to
  0005-input.h-add-missing-include-on-stdio.h.patch

- removed 0020-locale.c-fix-build-without-wchar.patch
  (superseded by upstream commit)

- added 0006-locale-fix-typo-local_shiftstates-vs.-locale_shiftst.patch
  to fix typo from upstream commit (see previous patch)

- added 0007-glob-fix-dequote_pathname-vs.-udequote_pathname.patch

Signed-off-by: Peter Seiderer <ps.report@gmx.net>
Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>