pgsql: Revert "Rename contrib module basic_archive to basic_wal_module"

Revert "Rename contrib module basic_archive to basic_wal_module"

This reverts commit 0ad3c60, as per feedback from Tom Lane, Robert Haas
and Andres Freund.  The new name used for the module had little
support.

This moves back to basic_archive as module name, and we will likely use
that as template for recovery modules, as well.

Discussion: https://postgr.es/m/CA+TgmoYG5uGOp7DGFT5gzC1kKFWGjkLSj_wOQxGhfMcvVEiKGA@mail.gmail.com

Branch
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master

Details
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https://git.postgresql.org/pg/commitdiff/9aeff092c05820d6a9252d7a3f8db86f71f2205f

Modified Files
--------------
contrib/Makefile                                   |  2 +-
.../{basic_wal_module => basic_archive}/.gitignore |  0
.../{basic_wal_module => basic_archive}/Makefile   | 14 ++++-----
.../basic_archive.c}                               | 26 ++++++++---------
contrib/basic_archive/basic_archive.conf           |  4 +++
.../expected/basic_archive.out}                    |  0
contrib/basic_archive/meson.build                  | 34 ++++++++++++++++++++++
.../sql/basic_archive.sql}                         |  0
contrib/basic_wal_module/basic_wal_module.conf     |  4 ---
contrib/basic_wal_module/meson.build               | 34 ----------------------
contrib/meson.build                                |  2 +-
doc/src/sgml/appendix-obsolete-basic-archive.sgml  | 25 ----------------
doc/src/sgml/appendix-obsolete.sgml                |  1 -
doc/src/sgml/archive-modules.sgml                  |  2 +-
.../{basic-wal-module.sgml => basic-archive.sgml}  | 30 +++++++++----------
doc/src/sgml/contrib.sgml                          |  2 +-
doc/src/sgml/filelist.sgml                         |  3 +-
17 files changed, 78 insertions(+), 105 deletions(-)