Create a CLI for Tools

[gbalke]

This should follow #37 to minimize code movement but it is not necessary. The intent is to make a CLI with sub-commands (like git). This should be possible with argparse as shown here: https://chase-seibert.github.io/blog/2014/03/21/python-multilevel-argparse.html

The goal is to remove all of the current scripts and instead make them sub-commands of bd-tools (or a different name if someone can think of something better).

I'm thinking the commands will essentially retain their current format so these should be familiar:

bd-tools upload_firmware <serial_device> <board_id(s)> <path_to_bin_file>
bd-tools read_sensor <serial_device> <board_id(s)> <sensor_name>
bd-tools control_motor <serial_device<board_id(s)> <control_type> <actuation_values>

These are obviously just a few examples and I think the recorder directory may be a bit tricky to consolidate (it would make sense to do something similar to #37 but for the recorders).

bd-tools recorder <type> <actuation> <log_file_path>
bd-tools recorder plot <log_file_path>

I'd recommend taking this bit by bit instead of all at once. Maybe one or two scripts per PR.

[gbalke]

Datargs can be used instead of argparse #39 (comment)

[gbalke]

Handled by #43.