text: create table Spittle (
      id identity,
      message varchar(140) not null,
      created_at timestamp not null,
      latitude double,
      longitude double
  );
  
  create table Spitter (
      id identity,
      username varchar(20) unique not null,
      password varchar(20) not null,
      first_name varchar(30) not null,
      last_name varchar(30) not null,
      email varchar(30) not null
  );