ESP8266 (Huzzah Feather) I2C scanner finds nothing
This particular issue was due to a faulty wire on the I2C bus. I replaced the wire and I was able to scan and get an address to the I2C LCD controller.

I still cannot get text to the LCD.  I will start a new question for that.

EDIT:

Upon scrapping my I2C_LCD_DISPLAY library, I downloaded one that was linked in a ESP32/8266 tutorial for the LCD, and finally got it working.