bmcweb: Add/Move common typedefs to dbus utility

The following typedefs that are commonly used by redfish services
to get dbus subtree objects:
MapperServiceMap =
    std::vector<std::pair<std::string, std::vector<std::string>>>
MapperGetSubTreeResponse =
    std::vector<std::pair<std::string, MapperServiceMap>>

This commit adds the above mentioned typedefs to dbus utility namespace
and removes locally defined typedefs in processor.hpp.

Testing:
Validator: No errors

Few sample outputs from curl command:

$ curl -k -X GET https://{$bmc}/redfish/v1/Systems/system/Processors
{
  "@odata.id": "/redfish/v1/Systems/system/Processors",
  "@odata.type": "#ProcessorCollection.ProcessorCollection",
  "Members": [
    {
      "@odata.id": "/redfish/v1/Systems/system/Processors/dcm0-cpu0"
    },
    {
      "@odata.id": "/redfish/v1/Systems/system/Processors/dcm0-cpu1"
    },
    {
      "@odata.id": "/redfish/v1/Systems/system/Processors/dcm1-cpu0"
    },
    {
      "@odata.id": "/redfish/v1/Systems/system/Processors/dcm1-cpu1"
    }
  ],
  "Members@odata.count": 4,
  "Name": "Processor Collection"
}

$ curl -k -X GET
https://{$bmc}/redfish/v1/Systems/system/Processors/dcm0-cpu0
{
  "@odata.id": "/redfish/v1/Systems/system/Processors/dcm0-cpu0",
  "@odata.type": "#Processor.v1_12_0.Processor",
  "Id": "dcm0-cpu0",
  "Location": {
    "PartLocation": {
      "ServiceLabel": "U78DA.ND0.WZS004K-P0-C15"
    }
  },
  "LocationIndicatorActive": false,
  "Manufacturer": "",
  "MaxSpeedMHz": 0,
  "Model": "5C67",
  "Name": "PROCESSOR MODULE",
  "PartNumber": "03JM290",
  "ProcessorId": {
    "EffectiveFamily": ""
  },
  "ProcessorType": "CPU",
  "SerialNumber": "YA3936061828",
  "Socket": "",
  "SparePartNumber": "F210110",
  "Status": {
    "Health": "OK",
    "State": "Enabled"
  },
  "SubProcessors": {
    "@odata.id":
"/redfish/v1/Systems/system/Processors/dcm0-cpu0/SubProcessors"
  },
  "TotalCores": 8,
  "TotalThreads": 0
}

$ curl -k -X GET
https://{$bmc}/redfish/v1/Systems/system/Processors/dcm0-cpu0/SubProcessors
{
  "@odata.id":
"/redfish/v1/Systems/system/Processors/dcm0-cpu0/SubProcessors",
  "@odata.type": "#ProcessorCollection.ProcessorCollection",
  "Members": [],
  "Members@odata.count": 0,
  "Name": "SubProcessor Collection"
}

Signed-off-by: Shantappa Teekappanavar <sbteeks@yahoo.com>
Change-Id: I297c763af38fa5b13ef297e911b338f406b7c6e6
diff --git a/include/dbus_utility.hpp b/include/dbus_utility.hpp
index 872ca61..75bda08 100644
--- a/include/dbus_utility.hpp
+++ b/include/dbus_utility.hpp
@@ -66,6 +66,14 @@
     boost::container::flat_map<
         std::string, boost::container::flat_map<std::string, DbusVariantType>>>;
 
+// Map of service name to list of interfaces
+using MapperServiceMap =
+    std::vector<std::pair<std::string, std::vector<std::string>>>;
+
+// Map of object paths to MapperServiceMaps
+using MapperGetSubTreeResponse =
+    std::vector<std::pair<std::string, MapperServiceMap>>;
+
 inline void escapePathForDbus(std::string& path)
 {
     const std::regex reg("[^A-Za-z0-9_/]");