Move "blink1 tips and tricks" doc from "blink1" to "blink1-tool" repo

[todbot]

Move and update these docs:

• https://github.com/todbot/blink1/blob/master/docs/blink1-tool.md
• https://github.com/todbot/blink1/blob/master/docs/blink1-tool-tips.md
• https://github.com/todbot/blink1/blob/master/docs/blink1-mk2-tricks.md
• https://github.com/todbot/blink1/wiki/Using-blink%281%29-as-a-programmable-nightlight