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

t/pt-archiver/samples/compact_col_vals.sql

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+drop database if exists cai;
+create database cai;
+use cai;
+
+CREATE TABLE `t` (
+  `id` int(10) unsigned NOT NULL AUTO_INCREMENT,
+  `c` varchar(255) NOT NULL DEFAULT '',
+  PRIMARY KEY (`id`)
+) ENGINE=InnoDB;
+
+insert into `t` values
+   (1, 'one'),
+   (2, 'two'),
+   (3, 'three'),
+   (4, 'four'),
+   (5, 'five'),
+   (9, 'nine'),
+   (11, 'eleven'),
+   (13, 'thirteen'),
+   (14, 'fourteen'),
+   (50, 'fifty'),
+   (51, 'fifty one'),
+   (200, 'two hundred'),
+   (300, 'three hundred'),
+   (304, 'three hundred four'),
+   (305, 'three hundred five');
+
+-- After compacting table t, the result should be table r.
+-- Just the id vals are shifted down to the lowest possible
+-- value, but the c values stay the same.
+
+CREATE TABLE `r` (
+  `id` int(10) unsigned NOT NULL AUTO_INCREMENT,
+  `c` varchar(255) NOT NULL DEFAULT '',
+  PRIMARY KEY (`id`)
+) ENGINE=InnoDB;
+
+insert into `r` values
+   (1, 'one'),
+   (2, 'two'),
+   (3, 'three'),
+   (4, 'four'),
+   (5, 'five'),
+   (6, 'nine'),
+   (7, 'eleven'),
+   (8, 'thirteen'),
+   (9, 'fourteen'),
+   (10, 'fifty'),
+   (11, 'fifty one'),
+   (12, 'two hundred'),
+   (13, 'three hundred'),
+   (14, 'three hundred four'),
+   (15, 'three hundred five');