Adding CPUCore interface support

This commit introduces essential D-Bus infrastructure support for
hosting the `Item.CPUCore` D-Bus object. Additionally, it includes
getter and setter functions to enable get/set properties within the
`CPUCore` interface, such as core count and microcode.

Testing:
Unit test passed

Change-Id: I728522b34e96ee7d6609efb5746b40cf923812e8
Signed-off-by: Kamalkumar Patel <kamalkumar.patel@ibm.com>
diff --git a/host-bmc/dbus/custom_dbus.hpp b/host-bmc/dbus/custom_dbus.hpp
index a320641..c8307c6 100644
--- a/host-bmc/dbus/custom_dbus.hpp
+++ b/host-bmc/dbus/custom_dbus.hpp
@@ -1,6 +1,7 @@
 #pragma once
 
 #include "common/utils.hpp"
+#include "cpu_core.hpp"
 
 #include <sdbusplus/server.hpp>
 #include <xyz/openbmc_project/Inventory/Decorator/LocationCode/server.hpp>
@@ -53,15 +54,37 @@
 
     /** @brief Get the LocationCode property
      *
-     *  @param[in] path     - The object path
+     *  @param[in] path - The object path
      *
      *  @return std::optional<std::string> - The value of the LocationCode
      *          property
      */
     std::optional<std::string> getLocationCode(const std::string& path) const;
+    /** @brief Implement CpuCore Interface
+     *
+     *  @param[in] path - The object path
+     *
+     */
+    void implementCpuCoreInterface(const std::string& path);
+    /** @brief Set the microcode property
+     *
+     *  @param[in] path   - The object path
+     *
+     *  @param[in] value  - microcode value
+     */
+    void setMicroCode(const std::string& path, uint32_t value);
+
+    /** @brief Get the microcode property
+     *
+     *  @param[in] path   - The object path
+     *
+     *  @return std::optional<uint32_t> - The value of the microcode value
+     */
+    std::optional<uint32_t> getMicroCode(const std::string& path) const;
 
   private:
     std::unordered_map<ObjectPath, std::unique_ptr<LocationIntf>> location;
+    std::unordered_map<ObjectPath, std::unique_ptr<CPUCore>> cpuCore;
 };
 
 } // namespace dbus