feat: add support for creating users and chirps

sql/schema/001_users.sql

@@ -0,0 +1,10 @@
+-- +goose Up
+CREATE TABLE users (
+  id UUID PRIMARY KEY,
+  created_at TIMESTAMP NOT NULL,
+  updated_at TIMESTAMP NOT NULL,
+  email TEXT UNIQUE NOT NULL
+);
+
+-- +goose Down
+DROP TABLE users;

sql/schema/002_chirps.sql

@@ -0,0 +1,12 @@
+-- +goose Up
+CREATE TABLE chirps (
+  id UUID PRIMARY KEY,
+  created_at TIMESTAMP NOT NULL,
+  updated_at TIMESTAMP NOT NULL,
+  body TEXT NOT NULL,
+  user_id UUID NOT NULL,
+  FOREIGN KEY (user_id) REFERENCES users (id) ON DELETE CASCADE
+);
+
+-- +goose Down
+DROP TABLE chirps;