Better return type for TemporalField resolve

TemporalField.resolve() currently returns ChronoLocalDate, which is limiting and ties the temporal API more closely to the chrono API than necessary.

Return TemporalAccessor instead and handle a few more ChronoLocalDate, ChronoLocalDateTime, ChronoZonedDateTime, and LocalTime.

See JSR 310 issue 336: https://github.com/ThreeTen/threeten/issues/336