Feature/633 new name for json object rendering

### Description
New name for JSON object rendering.
The old name 'attributesFormat' is not good.
New name: 'attributeFormat'.
Old name is still supported.

Should why change all the tests to use the "righ" one and add a new 633_XXX directory to include a little test cheking that the old one still being supported? Same case with WSG84 or FIWARE_Location...