CppunitTest_sw_ooxmlexport: port testTextFrames to textboxes

Change-Id: Id52ab22e2981ebda3960acabe473fadfafc67e72
CppunitTest_sw_ooxmlexport: port testTextFrameBorders to textboxes

Change-Id: I4d7a6a13a721282450a1c217defb84f386535a74