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/suite/funcs_1/triggers/triggers_03.inc

@@ -1,9 +1,13 @@
+#### suite/funcs_1/triggers/triggers_03.inc
 #======================================================================
 #
 # Trigger Tests
 # (test case numbering refer to requirement document TP v1.1)
 #======================================================================
 
+USE test;
+--source suite/funcs_1/include/tb3.inc
+
 --disable_abort_on_error
 
 ###########################################
@@ -20,6 +24,7 @@ let $message= Testcase 3.5.3:;
 	--enable_warnings
 	create database priv_db;
 	use priv_db;
+        --replace_result $engine_type <engine_to_be_used>
 	eval create table t1 (f1 char(20)) engine= $engine_type;
 
 	create User test_noprivs@localhost;
@@ -569,7 +574,9 @@ let $message=Testcase: 3.5.3.x:;
         drop table if exists t2;
         --enable_warnings
 
+        --replace_result $engine_type <engine_to_be_used>
         eval create table t1 (f1 int) engine= $engine_type;
+        --replace_result $engine_type <engine_to_be_used>
         eval create table t2 (f2 int) engine= $engine_type;
 
 	revoke ALL PRIVILEGES, GRANT OPTION FROM test_yesprivs@localhost;
@@ -656,3 +663,5 @@ let $message=Testcase: 3.5.3.x:;
 	drop user test_noprivs;
 	--enable_warnings
 
+use test;
+drop table tb3;