[Ham-Mac] FLRIG support for Kenwood TM-D710A/D710G

[John Hestenes]

Please implement FLRIG support for Kenwood mobiles:

Kenwood TM-D710A, TM-D710G, TM-V71A

These are used for Em Comm at Sutter Roseville Medical Center,
Roseville CA, and elsewhere.  



Thanks,
John Hestenes, NT6ET (formerly KJ6CVB)
Placer County ARES AEC