Add Privacy and Security Settings

app/src/main/java/com/hippo/ehviewer/Settings.java

@@ -575,6 +575,19 @@ public class Settings {
         putInt(KEY_SCREEN_LIGHTNESS, value);
     }
 
+    /********************
+     ****** Privacy and Security
+     ********************/
+    public static final String KEY_SEC_SECURITY = "enabled_secure";
+    public static final boolean VALUE_SEC_SECURITY = false;
+
+    public static boolean getEnabledSecurity() {
+        return getBoolean(KEY_SEC_SECURITY, VALUE_SEC_SECURITY);
+    }
+    public static void putEnabledSecurity(boolean value) {
+        putBoolean(KEY_READING_FULLSCREEN, value);
+    }
+
     /********************
      ****** Download
      ********************/