Bug 21708: Add a few tests in TransformHtmlToMarc.t

Bug 21708: Add a few tests in TransformHtmlToMarc.t

Test plan:
Run t/db_dependent/Biblio/TransformHtmlToMarc.t without the module change
patch. Verify that the test fails on the order of fields.
Go to test plan of the second patch.

Signed-off-by: Bernardo Gonzalez Kriegel <bgkriegel@gmail.com>
Signed-off-by: Katrin Fischer <katrin.fischer.83@web.de>
Signed-off-by: Martin Renvoize <martin.renvoize@ptfs-europe.com>
Signed-off-by: Joy Nelson <joy@bywatersolutions.com>