Added Drawer

Signed-off-by: zubietaroberto <zubieta.roberto.e@gmail.com>
Encapsulated User Logic inside dedicated fragment

Signed-off-by: zubietaroberto <zubieta.roberto.e@gmail.com>
Icon color improvements

Signed-off-by: zubietaroberto <zubieta.roberto.e@gmail.com>
Fixed NullPointerException

Signed-off-by: zubietaroberto <zubieta.roberto.e@gmail.com>
Overhauled HeaderAdapter into UserAdapter

Signed-off-by: zubietaroberto <zubieta.roberto.e@gmail.com>
Added "AlmostBlack" as the background Color for the drawer

Signed-off-by: zubietaroberto <zubieta.roberto.e@gmail.com>