Add `pyserial` lib to support serial robots

[MGross21]

Notes

Add pyserial library

Random Sample Code

import serial
import time

try:
    # Open the serial port
    ser = serial.Serial('/dev/ttyUSB0', 9600, timeout=1)  # Replace '/dev/ttyUSB0' with your port name
    print(f"Serial port {ser.name} opened successfully")

    # Write data
    ser.write(b'Hello from Python!')
    print("Data sent: Hello from Python!")

    # Read data (if device sends a response)
    received_data = ser.readline()
    if received_data:
        print(f"Data received: {received_data.decode('ascii')}")  # Decode bytes to string

    # Close the port
    ser.close()
    print("Serial port closed")

except serial.SerialException as e:
    print(f"Error opening serial port: {e}")

Breaking Change

This eliminates the pure Python standard library implementation

However, pyserial does seem to support 2.X and 3.X. Outdated documentation only shows to 3.8 so this will need to be tested.