BUG:330185 Text Brush: Letters are upside down when

Rotation is set to Drawing Angle

This bug was fixed by adding a new feature/parameter "angleOffset"
to the drawing angle option. Settings this new parameter to
180 degrees will give the expected output in this user's case.

The core issue is that when the drawing angle option is enabled,
an angle of 180 it sent when moving the cursor RIGHT.
KisTextBrush could some how test for this case and manually
subtract 180 to get "no rotation" when travelling right, but this
would be an ugly hack.