Bug 16155: Adjust TestBuilder.t

Bug 16155: Adjust TestBuilder.t

The changes in TestBuilder.pm require some changes in this test.

[1] Tests have been organized under subtests. A few superfluous tests have
    been removed. (There is still some overlap between the sections
    of overduerules_transport_type and userpermission.)
[2] The results in the build all sources-test are checked one step further.
[3] Tests are added for field length, null values and delete method.
[4] The former defaults from TestBuilder are incorporated in the tests
    for userpermission.

Test plan:
Run t/db_dependent/TestBuilder.t

Signed-off-by: Bernardo Gonzalez Kriegel <bgkriegel@gmail.com>
Signed-off-by: Kyle M Hall <kyle@bywatersolutions.com>