ENYO-2799: Fixed onyx.DatePicker fails to be re-rendered by the Designer after modifyProperty

* ENYO-2799: Load .design serializer options and use them into the serializer to fix onyx.DatePicker and onyx.TimePicker issues
* ENYO-2799: Reworked projectData passing to inspector and palette to prepare introduction of serializer options
* Merge branch 'master' of github.com:enyojs/ares-project into ENYO-2799
* Merge branch 'master' of github.com:enyojs/ares-project into ENYO-2799
* ENYO-2800: Re-add the stack trace in the error popup "Unable to render …"
* ENYO-2549: Fixed uncaught exception occuring when switching width and height in Designer.

WARNING: Needs an up-to-date onyx in the applications

Enyo-DCO-1.1-Signed-off-by: Yves Del Medico <yves.del-medico@hp.com>