pgsql: meson: Add headerscheck and cpluspluscheck targets

meson: Add headerscheck and cpluspluscheck targets

Author: Miłosz Bieniek <bieniek.milosz0@gmail.com>
Co-authored-by: Peter Eisentraut <peter@eisentraut.org>
Reviewed-by: Bilal Yavuz <byavuz81@gmail.com>
Discussion: /messages/by-id/CAMSWrt-PoQt4sHryWrB1ViuGBJF_PpbjoSGrWR2Ry47bHNLDqg@mail.gmail.com

Branch
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master

Details
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https://git.postgresql.org/pg/commitdiff/e82fc27e095b5a84c578b6e6b43b3396463bd812

Modified Files
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doc/src/sgml/targets-meson.txt | 2 ++
meson.build | 15 +++++++++++++++
src/tools/pginclude/README | 6 ++++++
3 files changed, 23 insertions(+)