New Slic3r::Point::XS class

xs/t/03_point.t

@@ -0,0 +1,12 @@
+#!/usr/bin/perl
+
+use strict;
+use warnings;
+
+use Slic3r::XS;
+use Test::More tests => 1;
+
+my $point = Slic3r::Point::XS->new(10, 15);
+is_deeply [ @$point ], [10, 15], 'point roundtrip';
+
+__END__