Create a more generic SQLmoodule with support for other DB engines

[luisdavim]

using:

import (
    _ "github.com/go-sql-driver/mysql"
    _ "github.com/lib/pq"
    _ "github.com/microsoft/go-mssqldb"
)

we could creat a more generig SQL module that would support PostgreSQL, MySQL and MSSQL...

[myzie]

Agreed.