SPI/other communications module?

[javathunderman]

Less important, but would be cool if we wanted to show this as a hardware demo - could use an Arduino (or similar) to bitbang out an array of numbers, have the FPGA listen to them on a set of pins, and load them into a memory - after this point we could just run the main Calyx component on the populated memory segment

[javathunderman]

On hold because I bricked my FPGA for the time being due to a misconfigured clock pin