Add new simple TAP test for tablespaces, attempt II.
See commit message for d1511fe1b040853f6e10d353e56b42bb96ae239d. This
new version attempts to fix path translation problem on MSYS/Windows.
Discussion: https://postgr.es/m/20220117055326.GD756210%40rfd.leadboat.com
Branch
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master
Detai
Add new simple TAP test for tablespaces.
The tablespace tests in the main regression tests have been changed to
use "in-place" tablespaces, so that they work when streamed to a replica
on the same host. Add a new TAP test that exercises tablespaces with
absolute paths, for coverage.
Reviewed-by:
