Bug#36788 Multiple funcs_1 'trig' tests are failing on vanilla builds

Fix for this bug and additional improvements/fixes
In detail:
- Remove unicode attribute from several columns
  (unicode properties were nowhere needed/tested)
  of the table tb3
  -> The runnability of these tests depends no more on
     the availibility of some optional collations.
- Use a table tb3 with the same layout for all
  engines to be tested and unify the engine name
  within the protocols.
  -> <engine>_trig_<abc>.result have the same content
- Do not load data into tb3 if these rows have no
  impact on result sets
- Add tests for NDB (they exist already in 5.1)
- "--replace_result" at various places because
  NDB variants of tests failed with "random" row
  order in results
  This fixes a till now unknown weakness within the
  funcs_1 NDB tests existing in 5.1 and 6.0
- Fix the expected result of ndb_trig_1011ext
  which suffered from Bug 32656
  + disable this test
- funcs_1 could be executed with the mysql-test-run.pl
  option "--reorder", which saves some runtime by
  optimizing server restarts.
  Runtimes on tmpfs (one attempt only):
  with    reorder 132 seconds
  without reorder 183 seconds
- Adjust two "check" statements within func_misc.test
  which were incorrect (We had one run with result set
  difference though the server worked good.)
- minor fixes in comments

mysql-test/r/func_misc.result

@@ -168,7 +168,7 @@ WHERE attempt = 4 - 1 + 1;
 UPDATE t_history SET end_cached = 0
 WHERE attempt = 4 - 1 + 1;
 # Test 1: Does the query with SLEEP need a reasonable time?
-SELECT COUNT(*) > 4 - 1 INTO @aux1 FROM t_history
+SELECT COUNT(*) >= 4 - 1 INTO @aux1 FROM t_history
 WHERE TIMEDIFF(end_ts,start_ts) - @sleep_time_per_result_row * @row_count
 BETWEEN 0 AND @max_acceptable_delay;
 SELECT @aux1 AS "Expect 1";
@@ -176,7 +176,7 @@ Expect 1
 1
 # Test 2: Does the query with SLEEP need a reasonable time even in case
 #         of the non first execution?
-SELECT COUNT(*) > 4 - 1 - 1 INTO @aux2 FROM t_history
+SELECT COUNT(*) >= 4 - 1 - 1 INTO @aux2 FROM t_history
 WHERE TIMEDIFF(end_ts,start_ts) - @sleep_time_per_result_row * @row_count
 BETWEEN 0 AND @max_acceptable_delay
 AND attempt > 1;