generalization of mtr to support suite.pm extensions:

* no automatic --loose-skip-innodb added by mtr based on the test name.
  instead loose-skip-innodb is now in the default_mysqld.cnf
* have_innodb_plugin.inc is changed to give a verbose "skip" message
  (instead of "require: true")
* My::Suite class. It's support in mtr, and everywhere
* support for suite.pm
* when sorting tests, take combinations into account
* support for SUITENAME_COMBINATIONS
* no special treatment for innodb_plugin in mtr_cases.pm
* two special pre-created config groups: ENV and OPT
* allow option names to start from #
* allow magic option to have an argument
* remove dead code
* fix @-substitution to works as expected
* new processes take the value of $opt_verbose automatically, no need to pass it to a constructor
* innodb_plugin suite uses suite.pm and combinations file to test as much as possible
  (innodb plugin, xtradb plugin, xtradb static - whatever available)
* besides test-master.opt and test-slave.opt a test.opt file is also
  loaded, both for master and slave
* .opt files for all included files are loaded too
* progress report in the xterm titlebar

mysql-test/suite/binlog/t/binlog_base64_flag.test

@@ -7,6 +7,7 @@
 
 
 # BINLOG statement does not work in embedded mode.
+source include/have_log_bin.inc;
 source include/not_embedded.inc;
 
 disable_warnings;

mysql-test/suite/binlog/t/binlog_old_versions.test

@@ -22,6 +22,7 @@
 
 # Related bugs: BUG#27779, BUG#31581, BUG#31582, BUG#31583, BUG#32407
 
+source include/have_log_bin.inc;
 source include/not_embedded.inc;
 
 --disable_warnings

mysql-test/suite/binlog/t/binlog_row_mix_innodb_myisam-master.opt

@@ -1 +1 @@
---innodb_lock_wait_timeout=2
+--loose-innodb_lock_wait_timeout=2

mysql-test/suite/binlog/t/binlog_stm_mix_innodb_myisam-master.opt

@@ -1 +1 @@
---innodb_lock_wait_timeout=2
+--loose-innodb_lock_wait_timeout=2