Create a postgresql database with given schema and manually add first superuser (is_superuser and can_alias should be true).

Need a creds.json file in same dir as artemis with Discord token and postgresql databse information. Format:

{
	"token":"TOKEN_STRING_HERE",
	"dbinfo": {
		"dbname":"NAME_HERE",
		"user":"USERNAME_HERE",
		"host":"PROBABLY_LOCALHOST_HERE",
		"password":"HUNTER2_HERE"
	}
}