Extensibility tests: Token Type - JWT

[iNinja]

Extensibility tests: Token Type - JWT

• Updated TokenTypeValidationError and updated the default token type validation delegate to use it
• Added log message and validation failure type for the case where the token type validation delegate throws
• Added custom validation error and validation delegates for token type validation
• Handle the case where the token type validation delegate throws in JsonWebTokenHandler
• Added extensibility tests for token type validation on JWT

Part of #2711