[PORT] Add getNextViableDate, getPreviousViableDate, getNextViableTime, getPreviousViableTime pre-built functions

[cosmicshuai]

fixes: #2559

Assume today is 2020-06-12 and current time is 15:42:21
getNextViableDate:
description: given a timex property of a valid month and day of month, evaluate the next viable date based on the current time at certain timezone
The signature is getNextViableDate(timex: string, timezone? : string) -> result:string
getNextViableDate("XXXX-12-20", "America/Los_Angelas") -> "2020-12-20"
getNextViableDate("XXXX-02-29") -> "2024-02-29"

getPreviousViableDate:
description: given a timex property of a valid month and day of month, evaluate the previous viable date based on the current time at certain timezone
The signature is getPreviousViableDate(timex: string, timezone? : string) -> result:string
getPreviousViableDate("XXXX-12-20", "Eastern Standard Time") -> "2019-12-20"
getPreviousViableDate("XXXX-02-29") -> "2020-02-29"

getNextViableTime:
description: given a timex property of a valid minutes and seconds, evaluate the next viable time based on the current time at certain timezone
The signature is getNextViableTime(timex: string, timezone? : string) -> result:string
getNextViableTime("TXX:12:14", "Asia/Tokyo") -> "T16:12:14"
getNextViableTime("TXX:52:14) -> "T15:52:14"

getPreviousViableTime:
description: given a timex property of a valid minutes and seconds, evaluate the previous viable time based on the current time at certain timezone
The signature is getPreviousViableTime(timex: string, timezone? : string) -> result:string
getPreviousViableTime("TXX:12:14", 'Europe/London') -> "T15:12:14"
getPreviousViableTime("TXX:52:14") -> "T14:52:14"

[coveralls]

Pull Request Test Coverage Report for Build 154944

• 169 of 176 (96.02%) changed or added relevant lines in 7 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage increased (+0.09%) to 82.946%

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Changes Missing Coverage	Covered Lines	Changed/Added Lines	%
libraries/adaptive-expressions/src/builtinFunctions/getNextViableTime.ts	39	40	97.5%
libraries/adaptive-expressions/src/builtinFunctions/getPreviousViableTime.ts	39	40	97.5%
libraries/adaptive-expressions/src/builtinFunctions/getNextViableDate.ts	41	43	95.35%
libraries/adaptive-expressions/src/builtinFunctions/getPreviousViableDate.ts	40	43	93.02%

Totals
Change from base Build 154890:	0.09%
Covered Lines:	14997
Relevant Lines:	17187

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💛 - Coveralls

[chrimc62]

🕐

[chrimc62]

[chrimc62]

Fix the two remaining any -> Expression and you are good to go.