IsSizePowerOfTwo = function (width, height)
{
    return (width > 0 && (width & (width - 1)) === 0 && height > 0 && (height & (height - 1)) === 0);
}
Checks if the given `width` and `height` are a power of two.
Useful for checking texture dimensions.

@function Phaser.Math.Pow2.IsSize
@since 3.0.0

@param {number} width - The width.
@param {number} height - The height.

@return {boolean} `true` if `width` and `height` are a power of two, otherwise `false`.