Update to version 0.2.1.
Update to version 0.2.1.

auth0/JWTDecode.swift,auth0/JWTDecode.swift,MichielDeMey/JWTDecode.swift,kostiakoval/JWTDecode.swift,kostiakoval/JWTDecode.swift,FiftyTwoDegreesNorth/JWTDecode.swift,FiftyTwoDegreesNorth/JWTDecode.swift,kostiakoval/JWTDecode.swift,FiftyTwoDegreesNorth/JWTDecode.swift,kostiakoval/JWTDecode.swift,MichielDeMey/JWTDecode.swift,FiftyTwoDegreesNorth/JWTDecode.swift