Port the test case from MySQL to MariaDB:

MySQL fix Bug#33813951, Change-Id: I2448e3f2f36925fe70d882ae5681a6234f0d5a98.

Function test_simple_temporal() from MySQL ported from C++ to pure C.

This includes one change:
-  DIE_UNLESS(field->type == MYSQL_TYPE_DATETIME);
+  DIE_UNLESS(field->type == MYSQL_TYPE_TIMESTAMP);

The bound param of SELECT ? is TIMESTAMP in this code.
MySQL returns it back as DATETIME. MariaDB preserves TIMESTAMP.

Code packaged for commit by Daniel Black.