Text Fit

Text Fit
- Adjust the text point size to match the size of the TextLabel.

sample) If TEXT_FIT is set to true,
        the size of the text will increase to match the size of SetSize()

    Property::Map backgroundMap;
    backgroundMap["color"] = Color::RED;
    backgroundMap["enable"] = true;

    Property::Map textFitMap;
    textFitMap["enable"] = true;
    textFitMap["minSize"] = 10.f;
    textFitMap["maxSize"] = 100.f;
    textFitMap["stepSize"] = 1.f;
    textFitMap["fontSizeType"] = "pointSize";

    TextLabel textFit = TextLabel::New(  "This is a sample text " );
    textFit.SetSize( 450, 100 );
    textFit.SetParentOrigin(ParentOrigin::TOP_LEFT);
    textFit.SetAnchorPoint(AnchorPoint::TOP_LEFT);
    textFit.SetPosition( 100.f, 100.f);
    textFit.SetProperty( Toolkit::DevelTextLabel::Property::TEXT_FIT, textFitMap );
    textFit.SetProperty( Toolkit::DevelTextLabel::Property::BACKGROUND, backgroundMap );
    stage.Add( textFit );

Change-Id: I50fea94547bc8147dd211f597520b27a35c8eb85