[RESTRICT AUTOMERGE] 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 e8a4e13a80f89b8ce3d05b7bba5235f373d9de09)
diff --git a/src/com/android/settings/Settings.java b/src/com/android/settings/Settings.java
index 404207d..cc9542b 100644
--- a/src/com/android/settings/Settings.java
+++ b/src/com/android/settings/Settings.java
@@ -90,6 +90,8 @@
     public static class WifiSettingsActivity extends SettingsActivity { /* empty */ }
     public static class WifiSettings2Activity extends SettingsActivity { /* empty */ }
     public static class NetworkProviderSettingsActivity extends SettingsActivity { /* empty */ }
+    /** Activity for the Wi-Fi network details settings. */
+    public static class WifiDetailsSettingsActivity extends SettingsActivity { /* empty */ }
     public static class WifiP2pSettingsActivity extends SettingsActivity { /* empty */ }
     public static class AvailableVirtualKeyboardActivity extends SettingsActivity { /* empty */ }
     public static class KeyboardLayoutPickerActivity extends SettingsActivity { /* empty */ }