Add library for LCD screen

[margrevm]

Requirements:

• Show an ASCII ART image (robot logo) during init.
• Show last 3 logs
• Show current GNC mode.
• Show distances from 3 distance sensors.
• Show line position when in line following mode
• Be able to set referesh frequency
• When an obstacle is detected at less then 10cm the corresponding distance shall blink or appear in plain.

DFRobot lib:
https://github.com/fdebrabander/Arduino-LiquidCrystal-I2C-library

Better implementation:
https://github.com/mrkaleArduinoLib/LiquidCrystal_I2C

For Menu:

• https://github.com/VaSe7u/LiquidMenu

Attention this library contains delays. Maybe change this locally and make a pull-request on the project.

Steps:

• Check if existing library exists
• Design module
• Code
• Some simple test scenarios to print example outputs
• Update doc