This exports a helper class to connect to serial port and subscribe
to uint8 chunks easily without having to re-implement that logic.
Change-Id: Ie6563d0cfc71acf2d3eb79d5b10309da38b746ff
Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/103002
Reviewed-by: Anthony DiGirolamo <tonymd@google.com>
Commit-Queue: Asad Memon <asadmemon@google.com>
