Port 2015 WPILib to cRio

[virtuald]

If someone were to do this, here's what they would need to do:

• Currently RobotPy has python 3.2.5 in the tree. Port python 3.4.2 to cRio, adjust the build scripts to build that.. this probably isn't that hard
• Remove the old wpilib SIP bindings
• Adjust the current C++ HAL with #ifdef or whatever to work with the cRio chipobject/networkcommunications stuff. A good start might be to look at the HAL that was originally started but abandoned by the WPILib team.
• Add SIP bindings for that C++ HAL. I imagine this goes something along the lines of creating a 'hal_impl' module that has a _RETVAL function which just passes through to the SIP bindings. No ctypes required.
• Obviously, some things wouldn't be able to be supported (CANJaguar and CANTalon come to mind), and would just need to raise an error

This would be a great resource for people who want to use their old cRio's for testing robots, and use the new pyfrc/wpilib/etc without needing to port their code. However, I do not personally have the cycles to do this, but I can provide advice to anyone that is interested in taking it up.