Add forked Maatkit tools in bin/ and their tests in t/.

t/pt-archiver/samples/Plugin4.pm

@@ -0,0 +1,26 @@
+package Plugin4;
+
+sub new {
+   my ( $class, %args ) = @_;
+   $args{sth} = $args{dbh}->prepare(
+      "INSERT INTO test.table_9 values(?,?,?)
+      ON DUPLICATE KEY UPDATE b=b+1, c=c+values(c)
+      ");
+   return bless(\%args, $class);
+}
+
+sub is_archivable {1} # Always yes
+
+sub before_delete {} # Take no action
+
+sub before_insert {
+   my ( $self, %args ) = @_;
+   $self->{sth}->execute(@{$args{row}});
+}
+
+sub custom_sth {} # no action
+sub before_begin {} # Take no action
+sub after_finish {} # Take no action
+
+1;
+