SpringAtom-#27 LocaleSupport

both server and client side are ready to server/receive locale-based properties
SpringAtom-#27 Locale support

backend to support localization is provided.
please notify that at the moment it is rather basic implementation that does
* loading available locales
* loading localized preferences againts given key
* providing customized mixin to support loading localized values for keys

close #27
SpringAtom-#25 Create basic viewport

 BasicViewport is available at the moment. Proceeding to adding next components
SpringAtom-#30 RemoteLog - Client side storage

initial commit 2
for now SLocale sipport is not complete