IdStory Identity Manager

• add new reducer: config
• load backend configuration (enabled modules ..) and store it to config reducer
• load frontend configuration (module descriptors, component descriptors, localization ...) and store it to config reducer
• init react router and routes from all enabled frontend modules (depends on backend modules)
• revert routes overriding - now will be possible - this is main functional purpose of this ticket
• refactor logout redux action - prevent to delete stored config data will be not necessary now (config will be stored in diferent reducer now)
• refactor layout init actions (maybe remove them at all)
• layou and config reducer should be immutable map

P.S.: PoC is commited in Index_new.js