Adding Wifi setting to special_access settings

In the settings app, allow users to override app permission for
CHANGE_WIFI_STATE for every application that declared that permission.

Bug: 70562620
Test: compile, robotests

Manual test:
Flash build to device (walleye)
Download iPass from playstore
Open iPass and try connect to a wifi network; verify success
Open settings -> Apps & notifications -> Advanced -> Special app access
-> Wifi access
Select iPass from the list
Toggle the switch to off
Open iPass and try connect to a wifi network; verify failure

Change-Id: Ib2be4c83988a81ba7831d096c9b1980462e66903

res/xml/special_access.xml

@@ -121,4 +121,14 @@
             android:value="com.android.settings.Settings$DirectoryAccessSettingsActivity" />
     </Preference>
 
+    <Preference
+        android:key="change_wifi_state"
+        android:title="@string/change_wifi_state_title"
+        android:fragment="com.android.settings.applications.manageapplications.ManageApplications"
+        settings:keywords="@string/keywords_change_wifi_state">
+        <extra
+            android:name="classname"
+            android:value="com.android.settings.Settings$ChangeWifiStateActivity" />
+    </Preference>
+
 </PreferenceScreen>