MediaProvider: Add feature to support group music by folder path

There is no support to group music by folder path.

Add extra query sql statement for supporting group music
by folder path.

CRs-Fixed: 620983

Change-Id: If0036efe8c9ebbea11c7aca1752e1d12b2287955
MediaProvider: support streaming bookmark

Add bookmarks table and bookmark URI.

CRs-Fixed: 637282
Change-Id: I4414a1619066efe58457350a82394d56d26d41bb
MediaProvider: Make folder music change when delete music

Lack the register for folder music uri,which cause the data
not change we obtain the change from uri.

Register uri for folder music to make correspoing cursor
change when data change.

CRs-fixed: 661198

Change-Id: I3b36851e0592efee66ae107b73ce3c43153b3913