Add NHD-C0220BiZ-FS(RGB)-FBW-3VM 2x20 character I2C display with RGB backlight

Add a 2x20 character I2C LCD with RGB backlight and integrated ST7036i COG controller.

Please configure your personal fork of the KiCad project with the following settings:

1. Settings->General->Visibility->Pipelines should be enabled and set to "Everyone with access".

I could not find that setting. Hopefully it is OK.

• Datasheet: https://newhavendisplay.com/content/specs/NHD-C0220BiZ-FSRGB-FBW-3VM.pdf
• Associated kicad-footprints MR: kicad-footprints!3430 (merged)
• Symbol based upon: !2448 (merged), duplicated and modified.

• Remove the instructional content of this template
• Provide a URL to a datasheet for the symbol(s) you are contributing
• An example screenshot image is very helpful
• Ensure that the associated footprints match the official footprint library
  • A new fitting footprint must be submitted if the library does not yet contain one.
• If there are matching footprint PRs, provide link(s) as appropriate
• Check the output of the automated check scripts - fix any errors as required
• Give a reason behind any intentional library convention rule violation.