RF-12900: removed NnumberUtils - refactored to ProgressBarBaseRenderer
RF-12900: refactored utils related to Select components to org.richfaces.ui.select
RF-12900: refactored org.richfaces.ui.util to org.richfaces.util
RF-12900: fixing ProgressBarStateEncoder imports
RF-12900: refactored CoreAjaxRendererUtils methods operating with set as Sets.asSet
RF-12900: removed unused CoreAjaxRendererUtils methods getAjaxAreasToProcess and getAjaxAreas
RF-12900: refactored CoreAjaxRendererUtils.renderAjaxExtensions to ExtendedPartialViewContextImpl
RF-12900: refactored org.richfaces.ui.util.CoreRendererUtils to org.richfaces.context.ContextUtils
RF-12900: refactored some utils to respected ui packages
RF-12900: refactored rest of packages from org.richfaces.ui.util.renderkit to org.richfaces.util
RF-12900: refactored AjaxRendererUtils
RF-12900: refactored ColorUtils to org.richfaces.images and made them package protected
RF-12900: refactored org.richfaces.util.Util to org.richfaces.resource.ResourceUtils
RF-12900: refactored ObjectInputStreamImpl to ResourceUtils
RF-12900: moved LRUMap to cache.lru package
RF-12900: removed LazyLoadingObject
RF-12900: moved RequestStateManager to org.richfaces.resource and made it package protected