treewide: move all perl packages into its own folder

This makes it in sync with Python packages.
Python packages has its own place in /lang/python
Perl does not, so this fixes it.

Signed-off-by: Josef Schlehofer <pepe.schlehofer@gmail.com>

lang/perl/perl-file-rsyncp/patches/001-no-subdirs.patch

@@ -0,0 +1,11 @@
+--- a/Makefile.PL
++++ b/Makefile.PL
+@@ -8,7 +8,7 @@ WriteMakefile(
+                             Getopt::Long => 2.24,	# need OO interface
+                          },
+     'PMLIBDIRS'       => ['lib'],
+-    'DIR'             => ['Digest', 'FileList'],
++    'DIR'             => [],
+     ($] >= 5.005 ?    ## Add these new keywords supported since 5.005
+       (ABSTRACT_FROM  => 'lib/File/RsyncP.pm', # retrieve abstract from module
+        AUTHOR         => 'Craig Barratt <cbarratt@users.sourceforge.net>')