pgsql: Report configured port in MSVC built pg_config

Report configured port in MSVC built pg_config

This is a long standing omission, discovered when trying to write code
that relied on it.

Backpatch to all live branches.

Branch
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REL_11_STABLE

Details
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https://git.postgresql.org/pg/commitdiff/3f70d7e441b36f49a5a0a0c67e14c2db24820191

Modified Files
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src/tools/msvc/Solution.pm | 2 ++
1 file changed, 2 insertions(+)