Log message:
Largely simplify packaging for wip/sloccount

This gets rid of many (incorrect) patches. The helper binaries are also
moved to a dedicated folder with this change (libexec/sloccount), in order
to avoid pollution in BINDIR. As a result functionality is currently broken
except when adding $LOCALBASE/libexec/sloccount to $PATH.

It might be a good idea to let sloccount's original binary in
libexec/sloccount, while providing a wrapper around it which would then set
$PATH accordingly.

Log message:
Drop superfluous PKG_DESTDIR_SUPPORT, "user-destdir" is default these days.
Mark packages that don't or might probably not have staged installation.

Log message:

	wip-changes:
	-----------
	o USE_TOOLS+= flex, perl
	o USE_DESTDIR Support
	o update ./patches/patch-aa
	o remove @dirm PLIST

Log message:
Packaged sloccount