GetMagnitudeSq = function (point)
{
    return (point.x * point.x) + (point.y * point.y);
}
Calculates the square of magnitude of given point.(Can be used for fast magnitude calculation of point)

@function Phaser.Geom.Point.GetMagnitudeSq
@since 3.0.0

@param {Phaser.Geom.Point} point - Returns square of the magnitude/length of given point.

@return {number} Returns square of the magnitude of given point.