Create below version 2 files for WifiTracker2 development, we can
check the feature flag only a few times and easily remove version 1
files in the future.
src/com/android/settings/wifi/details2/
src/com/android/settings/wifi/savedaccesspoints2/
tests/robotests/src/com/android/settings/wifi/details2/
tests/robotests/src/com/android/settings/wifi/savedaccesspoints2/
Bug: 143326832
Test: make RunSettingsRoboTests -j ROBOTEST_FILTER=com.android.settings.wifi.details2
make RunSettingsRoboTests -j ROBOTEST_FILTER=com.android.settings.wifi.savedaccesspoints2
Change-Id: I4d2caf1ce313871605252395764b02747240f217
Use arrays.xml to store translations for enumerations;
avoid race conditions happened when pop up menu or dialog;
avoid saving configurations with networks disabled;
use the same layout for all the dialogs;
support editing EAP networks;
only unlock keystore before connecting;
and many bug fixes I cannot remember.
The number of lines in the new code is about 1/3 of the old one,
and it improves the readability a lot!
