Set maximum width to stroke and fill text when invoked to draw labels

[stockiNail]

This PR is setting the max width when strokeText and fillText methods of are invoked to draw the labels.

This enables a simple appearance animation on the labels based on the width of annotation element.

• wait for Enable centered label drawing for doughnut controllers #825

[stockiNail]

This could be helpful on animation but it could create some limitations when you need to draw the label, ignoring the box size. Better do not implement.