PR/222002 initially patched graphics/xpdf to update to xpdf 4.00.
As xpdf 4.00 introduces a brand new GUI based on QT5 rather than
Motif, xpdf4 is being added as a new port, repocopied from
graphics/xpdf.

Subsequent to this commit graphics/xpdf will be renamed to xpdf3
and a master port of graphics/xpdf (similar in concept to
security/krb5, sysutils/cfengine and sysutils/syslog-ng) will be
created to allow users to seamlessly update. People concerned
with POLA will be encouraged to use the to be renamed graphics/xpdf3
port.

PR: 222002
Submitted by: Andrew Romanenko <melanhit@gmail.com>