Add WifiConfiguration.isUserSelected

Add a WifiConfiguration.isUserSelected flag to denote if this
WifiConfiguration was connected due to user selection. This will be used
for showing a dialog before switching away from user-selected networks.

Bug: 259013580
Test: atest WifiConfigurationTest WifiConfigManagerTest
ClientModeImplTest
Change-Id: Ia634ac1443cd48028fbd7b76f64d22bd8d37c5ea
6 files changed