Initializing module

Signed-off-by: Carlos Paredes <cparedes@covetel.com.ve>
Adding report for sales orders

Signed-off-by: Carlos Paredes <cparedes@covetel.com.ve>
Adding template rml for sales orders reports

Signed-off-by: Carlos Paredes <cparedes@covetel.com.ve>
Adding sales orders extra reports to sale order view

Signed-off-by: Carlos Paredes <cparedes@covetel.com.ve>