zoned/chop

• chopZonedDate: Extracts the local time portion from an ISO 8601 zoned datetime string.
• chopZonedDateTime: Extracts the IANA timeZone identifier from an ISO 8601 zoned datetime string.
• chopZonedMilliseconds: Returns the zoned datetime string rounded/truncated to second precision.
• chopZonedSeconds: Returns the zoned datetime string truncated to minute precision.
• chopZonedTime: Extracts the local date portion from an ISO 8601 zoned datetime string.
• chopZonedTimezone: Returns the local plain datetime (date + time) extracted from a zoned datetime string.