Added SansgridHatching handler
Added Fly datatype handler

Doesn't do anything yet
Added a Peck datatype handler
Added Sing datatype handler
Added Mock datatype handler
Added Peacock datatype handler
Added Nest datatype handler
Added Squawk datatype handler
Added Heartbeat datatype handler
Added Chirp datatype handler
Added init code to Hatching dt handler
Indicated that no datatype handlers are done

All handler functions currently return -1 to indicate they are not done
yet.
Added a serial API header

No functions have been defined yet for this.
The idea is that you define your own functions, following the API.
Added quick defs for serial API for router
Started working on Eyeball, Peck handling