ENYO-2315: Modifications for having a generic analysis of .design files

@unwiredben , @yves-del-medico , @snowfix 

This pull request is ready for comment and review.

Summary:
. analyzer.Indexer is now supporting all sections present in .design files and not only "palette" and "propertyMetaData" sections
. Ares specific processing (i.e': related to palette, ...) is removed from the analyzer.Indexer (should be done in Ares)

Enyo-DCO-1.1-Signed-off-by: Marie-Antoinette de Bonis-Hamelin (Marian)
marie-antoinette.de-bonis-hamelin@hp.com