New port: databases/pspg: Tabular data pager designed to be used with psql

[yuri]

Summary

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=223694

[tcberner]

Fails to stage:

===========================================================================
====> Running Q/A tests (stage-qa)
====> Checking for pkg-plist issues (check-plist)
===> Parsing plist
===> Checking for items in STAGEDIR missing from pkg-plist
Error: Orphaned: %%PORTDOCS%%%%DOCSDIR%%
===> Checking for items in pkg-plist which are not in STAGEDIR
Error: Missing: %%DOCSDIR%%/README.md
===> Error: Plist issues found.
*** Error code 1

[yuri]

.