Multi-set for OLEDs with easy to customize code areas

[cmoz]

Enhancements to ProgrammerKeys – Features & Customization

• This adds 5 sets of 4 OLEDs screen options, that can be customized in the code.
• There are clear areas where the colours for the different elements can be edited.
• Each set can have a customized colour, and each screen within the set too can have different colours.
• There are suggested areas, where you press the key and the text will be entered into your computer.
• Added the code elements for it to be a .cpp file for PlatformIO users
• Added the suggested platformio.ini file for platformIO users