[TIMOB-13618] iOS: leftPadding on textfield causes clicking issues

*Problem description* When using leftPadding on a textfield it causes the textfield to become quite user un-friendly. There are two main issues: 1) Even though you only add say 20px of leftPadding, almost 100px of the field becomes un-clickable. 2) The same space does not react to a longpress for magnifying glass i.e. 100px from the left is un-clickable what's so ever. So for example if you managed to type text into the box, you cannot edit text that appears in the first 100px of the field, unless you first long-press to the right hand side and drag to the left. *Expected behavior* Can click within the padded area to activate the text field and longpress to reveal the magnifying glass. *Actual behavior* Cannot click within the padded area to activate the text field or longpress to reveal the magnifying glass. *Test case*

var win = Titanium.UI.createWindow({
	backgroundColor : '#fff'
});

win.add(Ti.UI.createTextField({
	paddingLeft : 20,
	borderStyle : Ti.UI.INPUT_BORDERSTYLE_NONE,
	top : 30,
	height : 30,
	width : 200,
	borderRadius : 10,
	hintText : 'Hello World',
	borderColor : '#000'
}));

win.open();