STK600 support

[zarpli]

Describe the request

The STK600 development board is fully compatible with the Arduino IDE

https://github.com/zarpli/STK600

It would be very helpful if you add the following parameters in "programmers.txt" file:

stk600.name=Atmel STK600 development board
stk600.communication=usb
stk600.protocol=stk600
stk600.program.protocol=stk600
stk600.program.tool=avrdude
stk600.program.tool.default=avrdude
stk600.program.extra_params=

Describe the current behavior

currently parameters must be entered on each new installation :(