pgsql: Add Windows file version information to libpq/test programs.

Add Windows file version information to libpq/test programs. Back-patch to v15, the first version to install these programs. Discussion: https://postgr.es/m/[email protected] Branch -- REL_15_STABLE Details --- https://git.postgresql.org/pg/commitdiff/8b042df51ea

pgsql: Add Windows file version information to libpq/test programs.

Add Windows file version information to libpq/test programs. Back-patch to v15, the first version to install these programs. Discussion: https://postgr.es/m/[email protected] Branch -- master Details --- https://git.postgresql.org/pg/commitdiff/b6a5158f98fd5158f6