Basic API optional parameters from CKAN datastore API

[leomrocha]

This is a follow up of issue #7

Acceptance

• [x] The data-api app provides the parameters
• [x] The data-api app provides response streaming

Tasks

Implement the following parameters

• [x] offset
• [x] sort
• [ ] include total(bool) total matching record count (int) default:false
• [x] return format
  • [x] csv
  • [x] tsv

Analysis

The total(bool) count will not be implemented as currently needs another query to count the results or obtain all the results in a single page and count the objects. As currently performance is first, this count might be implemented in a later issue but will be excluded of this one.

Refer to issue #7

[leomrocha]

Closing the issue as all the things that will be implemented are already in place. As per the updated analysis section count will not be currently implemented.