MXS-1514: Split failover test in two files, add manual version

The same test now has two versions. In the automatic version failover
begins automatically. In the manual version failover is started with
maxadmin. The tests are otherwise identical.

maxscale-system-test/mysqlmon_failover_auto.cpp

@@ -0,0 +1,34 @@
+/**
+ * Test auto_failover
+ */
+
+#include "testconnections.h"
+#include "mysqlmon_failover_common.cpp"
+
+int main(int argc, char** argv)
+{
+    interactive = strcmp(argv[argc - 1], "interactive") == 0;
+    TestConnections test(argc, argv);
+
+    // Wait a few seconds
+    sleep(5);
+    basic_test(test);
+
+    // Test 1
+    int node0_id = prepare_test_1(test);
+    sleep(10);
+    check_test_1(test, node0_id);
+
+    // Test 2
+    prepare_test_2(test);
+    sleep(10);
+    check_test_2(test);
+
+    // Test 3
+    prepare_test_3(test);
+    sleep(10);
+    check_test_3(test);
+
+    test.repl->fix_replication();
+    return test.global_result;
+}