[chirp_devel] It should be added to the program a new driver KYD IP-620

I long ago left a request to add a new radio (IP-620) to CHIRP. http://chirp.danplanet.com/issues/2033 I learned the basics pyton, a little bit to understand the code CHIRP now graduated driver radio. Please look at it and if you are satisfied, then include it in the repository.