libdpkg-perl: Demote some unstable modules to VERSION 0.01

These modules might still need some cleanup work, so make it explicit
that the API will change by demoting the VERSION.

scripts/Dpkg/Arch.pm

@@ -16,7 +16,7 @@ package Dpkg::Arch;
 use strict;
 use warnings;
 
-our $VERSION = "1.00";
+our $VERSION = "0.01";
 
 use base qw(Exporter);
 our @EXPORT_OK = qw(get_raw_build_arch get_raw_host_arch

scripts/Dpkg/ErrorHandling.pm

@@ -16,7 +16,7 @@ package Dpkg::ErrorHandling;
 use strict;
 use warnings;
 
-our $VERSION = "1.00";
+our $VERSION = "0.01";
 
 use Dpkg;
 use Dpkg::Gettext;