Add new ACTION_WIFI_DETAILS_SETTINGS to Settings

- Need to export the interface to Quick Settings to launch Wi-Fi Network
details settings.

- Rename WifiNetworkDetailsFragment.class

Bug: 191475923
Test: manual test with the topic CLs.
make RunSettingsRoboTests
atest -c SettingsUnitTests:com.android.settings.wifi \
         SettingsUnitTests:com.android.settings.network

Change-Id: Id2fd8c9b3b113ffbb49168305b05c67392fa4d87
(cherry picked from commit e8a4e13a)
Merged-In: Id2fd8c9b3b113ffbb49168305b05c67392fa4d87