Possibility to set the function return fields

[diomalta]

Need to return specific fields in a search function and we were unable to use a .map or build a query.

Search functions only have a filter option. The idea was to use this field to be more robust so that it starts to receive more parameters.

Today

async findBy(condition: Filter<T> | ((qb: Knex.QueryBuilder<T>) => unknown)) {
    return this.select().where(condition) as Promise<T[]>;
}

To

async findBy(option: Filter<T> | ((qb: Knex.QueryBuilder<T>) => unknown)) {
    return this.select(option.select).where(option.where) as Promise<T[]>;
  }

If there are parameter implementations it could help.