[cubicweb/doc] Add tutorial on data import in CubicWeb. This involves creating the "tutorials/dataimport" directory structure under "cubicweb/doc" and, inside the "dataimport" directory, putting several files: - a ResT file containing the tutorial *per se*; this tutorial addresses the following issues: * creating a CubicWeb schema for representing a given data set (here, the Diseasome RDF data, for illustration purposes); * parsing the data; * importing the data, by using several stores: + the ``RQLObjectStore``, ``NoHookRQLObjectStore`` and ``SQLGenObjectStore`` from the ``dataimport`` module in CubicWeb; + the ``MassiveObjectStore`` from the ``dataimport`` module in the ``dataio`` cube. The tutorial also provides timing benchmarks of the various stores. - a set of Python files illustrating the data import, in the context of Diseasome RDF data parsing: * a Diseasome RDF data parse module, * a Diseasome data import module, * a CubicWeb schema for representing Diseasome data.

     1

  <table class="attributeForm" style="width:100%;"

     2

	 tal:attributes="id tab_id | nothing;

     3

			 class tab_class | nothing;">

     4

    <tr tal:iter="widget lines">

     5

      <th class="labelCol" tal:content="structure python:widget.render_label(entity)">attrname</th>

     6

      <td tal:define="error python:widget.render_error(entity)" style="width:100%;"

     7

          tal:attributes="class python:error and 'error' or nothing">

     8

	<div tal:replace="structure error">error message if any</div>

     9

	<div tal:replace="structure python:widget.edit_render(entity)" >widget (input, textarea, etc.)</div>

    10

	<div tal:replace="structure python:widget.render_help(entity)">format help if any</div>

    11

      </td>

    12

    </tr>

    13

  </table>