ContainsPoint = function (polygon, point)
{
    return Contains(polygon, point.x, point.y);
}
Checks the given Point again the Polygon to see if the Point lays within its vertices.

@function Phaser.Geom.Polygon.ContainsPoint
@since 3.0.0

@param {Phaser.Geom.Polygon} polygon - The Polygon to check.
@param {Phaser.Geom.Point} point - The Point to check if it's within the Polygon.

@return {boolean} `true` if the Point is within the Polygon, otherwise `false`.