chinese/unzip

Merge 4 unzip slave ports into archivers/unzip as non-default options

It is practically impossible to use any of the unzip slave ports.  This
is because archivers/unzip is used by the ports infrastruction (via
USES=zip, USES=zip:infozip) and each slave port conflicts with it.
If you install the slave port first, then the port infrastructure can't
install archivers/unzip (although if attempted, the extracts dependency
might be satisfied by the slave port so it might actually work).

In any case, this change:
  * Adds "iconv" support as an non-default option
  * Add a localization group that can have zero or one selection
  * That group contains Chinese, Korean, or Russian support
  * WITH_UNZIP_UNREDUCE support was removed (I'm not sure it even worked)
  * Makefile was simplified (several loops removed)
  * Removes unzip-iconv, Chinese, Korean, Russian slave ports

PR:		190349
Reported by:	Mikhail Rokhin
Unzip overhaul:	marino
Approved by:	maintainer (ehaupt@)

Fix packaging after MASTER port was staged

Add NO_STAGE all over the place in preparation for the staging support (cat: chinese)

- Set CONFLICTS with unzip-iconv upcoming as a new port

PR:		ports/152006
Submitted by:	KOMATSU Shinichiro <koma2_AT_lovepeers_DOT_org>

Reset bouncing maintainer address.  These ports are now available for adoption.

Note that I have left the maintainer's own ftp site as a MASTERSITE
because it still appears to be active (for now, anyways).

Hat:	portmgr

* add CONFLICTS * make portlint happy

Approved by:	portmgr (krion)

- Pass maintainership to submitter

PR:		ports/75730
Submitted by:	statue(at)freebsd.netlab.cse.yzu.edu.tw

Tidy up whitespace.

statue@freebsd.sinica.edu.tw has asked for all the maintained ports to be reset to ports@FreeBSD.org.  We're sorry to see you go and want to thank you for your help in the past.

PR:		ports/59515
Submitted by:	statue@freebsd.sinica.edu.tw

chinese unzip: add cnoize's patch which won't strip chinese chars.

PR:		58057
Submitted by:	Statue <statue@freebsd.sinica.edu.tw>