MapCircle constructor
      const
      MapCircle({})
     
    
Creates a MapCircle.
Implementation
const MapCircle({
  required this.center,
  this.radius = 5,
  this.color,
  this.strokeColor,
  this.strokeWidth,
  this.onTap,
});Creates a MapCircle.
const MapCircle({
  required this.center,
  this.radius = 5,
  this.color,
  this.strokeColor,
  this.strokeWidth,
  this.onTap,
});