added isNonChar method to handle special non-char [1] character
added isNonChar method to handle special non-char [1] character

[1] https://en.wikipedia.org/wiki/Specials_(Unicode_block)


Former-commit-id: e9225e431b1dcc63b439d5a536d232caa8b40b6c
jolie/jolie,jolie/jolie,jolie/jolie