If anyone wondering how to use I2c, this driver might help get started. Big thanks to the person who wrote the newest I2c driver.
Here is the link to my driver and i hope this helps someone out.
https://github.com/hansaya/BH1750-Driver-ESP8266
Let me know if you guys have any questions. Just keep in mind, this driver is not perfect and I'm fairly new to I2c.
-Hans-