* [ISO8601_DCG,EXT] Added support for the time designator for local time.
* [ISO8601_DCG,EXT] Added support for midnight notation (and the restrictions it imposes) for local time.
* [MATH_EXT,EXT] Generalized float_components/3 to number_components/3, also processes integers.
* [ISO8601_DCG,EXT] Added support for UTC designator.