Merge changes from topics "fontscaling-lineheight-after",...

Merge changes from topics "fontscaling-lineheight-after", "fontscaling-lineheight-spfix" into udc-dev

* changes:
  fix(non linear font scaling): recalculate proportional line height if they setTextSize() after setting line height
  fix(non linear font scaling): preserve proportionality of lineHeight when non-linear font scaling is in effect
  feat(non linear font scaling): add FontScaleConverterFactory.isNonLinearFontScalingActive()