Fix tokudb.gap_lock_error test

TokuDB testsuite makes use of includes not found in our default 10.0.
Cherry pick them from Percona Server's include directory.

mysql-test/include/gap_lock_error_init.inc

@@ -0,0 +1,24 @@
+eval CREATE TABLE gap1 (id1 INT, id2 INT, id3 INT, c1 INT, value INT,
+                      PRIMARY KEY (id1, id2, id3),
+                      INDEX i (c1)) ENGINE=$engine;
+CREATE TABLE gap2 like gap1;
+eval CREATE TABLE gap3 (id INT, value INT,
+                      PRIMARY KEY (id),
+                      UNIQUE KEY ui(value)) ENGINE=$engine;
+eval CREATE TABLE gap4 (id INT, value INT,
+                      PRIMARY KEY (id)) ENGINE=$engine
+                      PARTITION BY HASH(id) PARTITIONS 2;
+--disable_query_log
+let $max = 1000;
+let $i = 1;
+while ($i <= $max) {
+  eval INSERT INTO gap1 (id1, id2, id3, c1, value)
+       VALUES ($i div 2, $i div 10, $i, $i, $i);
+  eval INSERT INTO gap2 (id1, id2, id3, c1, value)
+       VALUES ($i div 2, $i div 10, $i, $i, $i);
+  inc $i;
+}
+--enable_query_log
+
+insert into gap3 values (1,1), (2,2),(3,3),(4,4),(5,5);
+insert into gap4 values (1,1), (2,2),(3,3),(4,4),(5,5);