Support HTTP basic authentication download

DownloadProvider, Browser: Catch HTTP401 exception in DownloadProvider.
Retieve authorization username and password from Browser application via
broadcast and receiver. Add username and password into HTTP Header request.

For: AXIA-1207

Change-Id: I3915d4c81c46132df17d8db78797cd1531eeeb22
Depends-Change-Id: I5c7e234f6f08991d9c8512f58e05403781beeb35
Depends-Change-Id: Id5428d06dd481c94b9ef53db3534e37aaa1bf820
Signed-off-by: bma <Bo.Ma@windriver.com>