docs: def createTable(dbconn, pd):
      """Creates a database table for the given PacketDefinition."""
      cols = ('%s %s' % (defn.name, getTypename(defn)) for defn in pd.fields)
      sql  = 'CREATE TABLE IF NOT EXISTS %s (%s)' % (pd.name, ', '.join(cols))
  
      dbconn.execute(sql)
      dbconn.commit()