[chirp_devel] Yaesu FT70 support

[Dan Smith]

>   _model = "AH51G"
>     _memsize = 65130  # But 65227 bytes read from dump
>     _block_lengths = [10,65227] # ???????????????? on FT1 memsize - 10
>     _block_size = 32
>     _mem_params = (900,            # size of memories array
>                    900,            # size of flags array

_memsize is used by default to detect images, but it’s not necessary if you implement your own detection routine. The rest are not common and are just used by the radio driver itself (or perhaps a common subclass).

—Dan