drawingML import: improve mapping of some filling pattern to hatching

For a better visual match.

Change-Id: I6f8a2f4b500c4ea04ef92572984a2bac597d85be
Update a hatching import test according to the new values

Change-Id: I2f3504e12be63a326da189e7f69ce87ad2bdb674
drawingML export: hatching of shapes

Change-Id: I7111d4064d033e27659c7b45650d596df22c593f
DOCX import: fix relative width of floating tables

Relative width of tables means relative to the page
and not to the paragraph area so we have to set
the RelativeWidthRelation property of the containing
text frame.

Change-Id: I054d22e1883eb0ed9b07b9141bb2bea956e8367e