Create database model to store records

[pelife]

Create database model to store records read from the bovespa file.

[pelife]

first models created:
tb_b3_sector_classification
tb_b3_equity_info
tb_b3_option_equity_info
tb_b3_market_data_info
tb_b3_historic_market_data_info

[pelife]

• create a model to store futures
• create a model to sovg bonds