Communicate via axcall

[joshbuhler]

Research work being done in SerialPi project

swift run SerialPi call

This will fire up the axcall process, and simply print out information as it's received. Currently unable to send repeated commands, but progress is being made. PoC work for sending to another process is happening in the doRubyThing() method. So far, that method can send/receive text to a ruby script. Should be able to translate some of that work to doCallThing()

[joshbuhler]

Progress being made - can use the doCallThing2() method to connect. Still running into some issues with determining when server is done responding though.