Set startup frequency for each VFO

[dimitarmartinov]

Currently using multiple VFOs and --autostart is usless because each VFO is assigned to the same frequency.
If I have to manually adjust each VFO after each startup, then what's the point of --autostartup? :)
It will be useful if different frequencies can be attached to a different VFOs either by editing json, assiging VFOs to a frequency manager record or by a field in each radio comonent