Fix module import name (lcd -> lcdapi)

[billyrayvalentine]

Updated esp8266_i2c_lcd to use renamed lcdapi class

[dhylands]

I shouldn't have pushed that change. In the end I finally decided to call it lcd_api.py. And then I forgot to push everything. Sigh.

So thanks for your PR. I think everything should be consistent now, so I'll go ahead and close this.
My apologies for the confusion.

If you find anything else feel free to open another PR.