v3.0.0

Careful, this one has breaking changes.

• Support extended to new platforms:

  • ESP32
  • ESP8266
  • ATmega2560

• Denser code

  • DRAW (display) replaces while (display.calculating)
  • display.colors.BLACK becomes BLACK

• Simplified fast-mode

  • `fastmodeOn()', 'fastmodeOff()'
  • No "finalizing"

• Support hardware power switching

  • usePowerSwitching(pin, switch_type)