title: flask-sqlalchemy use of drop_all and create_all for specific tables
body: <p>In sqlalchemy (0.8.2), <code>drop_all()</code> and <code>create_all()</code> both have a <code>tables</code> parameter, which can be a list of Table objects to drop or add.</p>
  
  <p>In flask-sqlalchemy (1.0) these methods do not have this parameter.</p>
  
  <p>What is the appropriate way to drop / create a subset of database tables, using flask-alchemy?</p>