Set ModelParserOptions::convertThreeRevoluteJointsToSphericalJoint default value to false and bump version to 14.0.2

[traversaro]

Fix #1267 .

[traversaro]

Cool, all test passed, so no test was assuming anything about the default value. @Nicogene @davidegorbani do you want to double check, thanks!

[traversaro]

I also updated the releases notes in https://github.com/robotology/idyntree/releases/tag/v14.0.0, to clarify that for >=14.0.2 the default behavior is not to convert joints to iDynTree::SphericalJoints by default.

[davidegorbani]

Thanks!

[Nicogene]

Cool, all test passed, so no test was assuming anything about the default value. @Nicogene @davidegorbani do you want to double check, thanks!

After a quick check I would say that I put the explicit option in order to avoid change in the behavior if the default changed