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-device-usb/patches/120-use_libusb_0_1.patch

@@ -0,0 +1,13 @@
+--- a/lib/Device/USB.pm
++++ b/lib/Device/USB.pm
+@@ -9,8 +9,8 @@ use Inline (
+         C => "DATA",
+         ($ENV{LIBUSB_LIBDIR}
+             ? ( LIBS => "-L\"$ENV{LIBUSB_LIBDIR}\" " .
+-                        ($^O eq 'MSWin32' ? ' -llibusb -L\"$ENV{WINDDK}\\lib\\crt\\i386\" -lmsvcrt ' : '-lusb') )
+-            : ( LIBS => '-lusb', )
++                        ($^O eq 'MSWin32' ? ' -llibusb -L\"$ENV{WINDDK}\\lib\\crt\\i386\" -lmsvcrt ' : '-lusb-0.1') )
++            : ( LIBS => '-lusb-0.1', )
+         ),
+         ($ENV{LIBUSB_INCDIR} ? ( INC => "-I\"$ENV{LIBUSB_INCDIR}\"" ) : () ),
+         NAME => 'Device::USB',