Modify set-value function from external

    Move Special mode from bmcweb to dbus-sensors, this will be handled via dbus-sensor when the user set-value f$
    This is unlikely to break any users because the Intel special mode function is no change, only move to dbus-s$

    The set value function is to filter the external set, excluding the internal set.
    In the external set, if in INSECURE_UNRESTRICTED_SENSOR_OVERRIDE, no need to check before set value else add $

    bmcweb needs to be merged at the same time.
    bmcweb changes are pushed to Gerrit:
    https://gerrit.openbmc-project.xyz/c/openbmc/bmcweb/+/42448

    the mailing list discussion links:
    https://lists.ozlabs.org/pipermail/openbmc/2021-March/025597.html

Signed-off-by: Bruce Lee <Bruce_Lee@quantatw.com>
Change-Id: I0919e4d2343e81045010a2b0d4bf01dc272bcb07
diff --git a/include/Utils.hpp b/include/Utils.hpp
index d2ab5ca..01d941f 100644
--- a/include/Utils.hpp
+++ b/include/Utils.hpp
@@ -316,3 +316,5 @@
     splitFileName(const std::filesystem::path& filePath);
 std::optional<double> readFile(const std::string& thresholdFile,
                                const double& scaleFactor);
+void setupManufacturingModeMatch(sdbusplus::asio::connection& conn);
+bool getManufacturingMode();