change:add screen table to provider

Change-Id: I83f686a2ad5bda61908f60e0076aa803c85c37b0
change:finish load scene data from xml to db

Change-Id: I218cc809a050e8dab00865dd6af6f6943dbc69b8
refactory:simplify loadscenes design
change:add scene iteminfo to collection

Change-Id: Ib984d51f9ea3fdcf9013ad0f3fea1272d0839f9e
change:finish bind workspace and allapps
change:add default screens and refactory loading scenes logic