Show error message for corresponding Wi-Fi DPP error code. And
1. To update error message only from each fragment,
remove some callbacks which calls from fragment to activity.
2. After clicking 'Share Wi-Fi' button, hide it before Wi-Fi DPP handshake completes.
3. Show 'Done' button for some error codes.
4. Use ViewModel to call startEasyConnectAsConfiguratorInitiator and
startEasyConnectAsEnrolleeInitiator because a lifecycle object
does not receive an Executor callback after configurator change.
5. In WifiDppQrCodeScannerFragment, show an error message for 10s instead of 2s
since new added error messages may carry more information.
6. Show a different error message for enrollee handshake success but Wi-Fi
connection fail case.
7. stop camera when scanned a Wi-Fi DPP QR code for enrollee.
8. In QR code scanner fragment, support to show error message after
configuration change.
Bug: 124247872
Bug: 124491247
Test: manual test
atest WifiQrCodeTest
atest WifiDppConfiguratorActivityTest
atest WifiDppEnrolleeActivityTest
atest WifiDppQrCodeGeneratorFragmentTest
atest WifiDppQrCodeScannerFragmentTest
atest WifiNetworkListFragmentTest
atest WifiDppChooseSavedWifiNetworkFragmentTest
Change-Id: Id130215e9ddafac8bc4c68238deda48ce99b4255
7bdcadbe72