Move Active BMC version object to item_updater.

- There needs to be only one version class for both
  BMC and PNOR images. Thus removing the BMCVERSION
  class and moving the functionality to MANAGER class.

Change-Id: I6dda818960588cfd9ed345fe93068531efc7a877
Signed-off-by: Saqib Khan <khansa@us.ibm.com>
diff --git a/item_updater.hpp b/item_updater.hpp
index 705b320..082dbf7 100644
--- a/item_updater.hpp
+++ b/item_updater.hpp
@@ -51,8 +51,14 @@
                                     this,
                                     std::placeholders::_1))
         {
+            processBMCImage();
         };
 
+    /**
+     * @brief Create and populate the active BMC Version.
+     */
+    void processBMCImage();
+
     private:
         /** @brief Callback function for Software.Version match.
          *  @details Creates an Activation dbus object.