Ability for nested property settings

[bumbeishvili]

So, we can group things in attrs object , for example

attrs = {
   textColor:'green',
   axis: {
              color:'blue',
              tickSize:29
           },
   axisColor:'green',
}

and methods will be generated like this

  chart.textColor();
  chart.axisColor();  // WE SHOULD REISE ERROR IN THIS CASE!!! because of conflict
  chart.axisTickSize()