Node/Express/Postgres Auth Part 1 - Signup Part 1

# Auth Part 1 Add form-based cookie authentication to our sticker-mania app. The Standards: https://gist.github.com/w3cj/bd3a541e1f09ddbb039079be575cf42e Auth checklist: https://gist.github.com/w3cj/4eb54dbf9f1c5ca4292e6299735144c5 The code: https://github.com/w3cj/users-stickers-CRUD ## Authentication * 0:33 Setup * 2:41 Overview of Sign Up Process * 5:35 Add auth router * 8:38 Create user with POST /auth/signup * 10:13 validate required fields * 18:33 Check if email is unique Search for more Coding Garden videos here: https://cg-videos.now.sh View the Coding Garden FAQ here: https://github.com/CodingGardenCommunity/app-wiki/wiki/Frequently-Asked-Questions