Create a logger

[andrewda]

Maybe something heavily based off of https://github.com/dominikWin/badlog for now. Using the same format would allow us to use https://github.com/dominikWin/badlogvis to visualize the data until we can write our own visualizer.

[andrewda]

We can use this issue for discussions on what the logger should look/act like, but here's my general thinking so far:

val logFile = Logger.create("/some/path/to/log_file.bag")

Logger.add("Match Number", Driverstation.getMatchNumber())
Logger.add("Drivetrain Voltage") { Drivetrain.voltage }

launch {
  periodic(0.1) {
    logFile.write()
  }
}