RF-13196: Rename all component/renderers types org.richfaces.ui

- so it won't conflict with RF4.5 org.richfaces namespace
RF-13186: fix dependencies in RF 4.5 showcase
moved SortMode to org.richfaces.model package
removed duplications with RF 4.5 on class level
renamed resources conflicting with RF 4.5
showcase: rename org.richfaces.component.SortOrder to .model.SortOrder
Showcase: disabling resource optimization
fixing failing tests
renaming FileUploadException to be compatible with RF 4.5