UI desktops

Detailed Description

Macros
#define	IDB_DESKTOPS_NODE_NAME   "$ desktops"
	hash indexed by desktop name with dekstop netnode
#define	IDB_DESKTOPS_TAG   'S'
	tag to store desktop blob & timestamp
#define	IDB_DESKTOPS_TIMESTAMP   nodeidx_t(-1)
	desktop timestamp index