Help adding E-Ink display support

Just to make sure:

• are you feeding a string into require, e.g. require("eink")?
  
  

If that wasn't it:

• does it work better if you rename the file from eink.js to just eink?
  
  

or

• change to require("eink.js")?
  
  

My reasoning for these proposals is based on these links:
https://www.espruino.com/ReferenceBANGLEJS2#l__global_require
https://github.com/espruino/BangleApps/blob/master/modules/README.md (specifically for Bangle.js development, not sure to what degree it applies to Espruino in general)