graphics: make raw image synchronization an opt-in setting

src/launcher/forms/configuration_edit_dialog.ui

@@ -185,6 +185,12 @@
           <property name="text"><string>Skip boot logos</string></property>
          </widget>
         </item>
+        <item row="10" column="1">
+         <widget class="QCheckBox" name="checkBox_sync_raw_image_buffers">
+          <property name="toolTip"><string>Can fix missing textures and incorrect transparency in some games. May reduce performance.</string></property>
+          <property name="text"><string>Accurate texture synchronization</string></property>
+         </widget>
+        </item>
        </layout>
       </widget>
      </item>