function toTRBLCorners(value) {
    return _readValueToProps(value, [
        'topLeft',
        'topRight',
        'bottomLeft',
        'bottomRight'
    ]);
}
Converts the given value into a TRBL corners object (similar with css border-radius).
@param value - If a number, set the value to all TRBL corner components,
 else, if an object, use defined properties and sets undefined ones to 0.
@returns The TRBL corner values (topLeft, topRight, bottomLeft, bottomRight)
@since 3.0.0