[tests] libraries linking correctness

Signed-off-by: Denis Zalevskiy <denis.zalevskiy@jolla.com>
shorter overloaded Namespace::addProperty

Signed-off-by: Denis Zalevskiy <denis.zalevskiy@jolla.com>
[upower] fixed dbus path, prop, added new props

Signed-off-by: Denis Zalevskiy <denis.zalevskiy@jolla.com>
bluez props

Signed-off-by: Denis Zalevskiy <denis.zalevskiy@jolla.com>