NetworkPkg: Add DNS feature support over IPv4 and IPv6.

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: jiaxinwu <jiaxin.wu@intel.com>
Reviewed-by: Fu Siyuan <siyuan.fu@intel.com>

git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@17854 6f19259b-4bc3-4df7-8a09-765794883524

NetworkPkg/DnsDxe/DnsDxe.inf

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+## @file
+# Implementation of EFI_DNS4_PROTOCOL and EFI_DNS6_PROTOCOL interfaces.
+#
+# Copyright (c) 2015, Intel Corporation. All rights reserved.<BR>
+#
+#  This program and the accompanying materials
+#  are licensed and made available under the terms and conditions of the BSD License
+#  which accompanies this distribution. The full text of the license may be found at
+#  http://opensource.org/licenses/bsd-license.php
+#
+#  THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+#
+#
+##
+
+[Defines]
+  INF_VERSION               = 0x00010005
+  BASE_NAME                 = DnsDxe
+  FILE_GUID                 = b219e140-dffc-11e3-b956-0022681e6906
+  MODULE_TYPE               = UEFI_DRIVER
+  VERSION_STRING            = 1.0
+  ENTRY_POINT               = DnsDriverEntryPoint
+  UNLOAD_IMAGE              = DnsUnload
+
+[Packages]
+  MdePkg/MdePkg.dec
+  MdeModulePkg/MdeModulePkg.dec
+
+[Sources]
+  ComponentName.c
+  DnsDriver.h
+  DnsDriver.c
+  DnsImpl.h
+  DnsImpl.c
+  DnsProtocol.c
+  DnsDhcp.h
+  DnsDhcp.c
+  
+  
+[LibraryClasses]
+  BaseLib
+  UefiLib
+  UefiBootServicesTableLib
+  UefiDriverEntryPoint
+  UefiRuntimeServicesTableLib
+  BaseMemoryLib
+  MemoryAllocationLib
+  NetLib
+  DebugLib
+  DpcLib
+  PrintLib
+  UdpIoLib
+  
+
+[Protocols]
+  gEfiDns4ServiceBindingProtocolGuid              ## BY_START
+  gEfiDns4ProtocolGuid                            ## BY_START
+  gEfiUdp4ServiceBindingProtocolGuid              ## TO_START
+  gEfiUdp4ProtocolGuid                            ## BY_START
+  gEfiDhcp4ServiceBindingProtocolGuid             ## SOMETIMES_CONSUMES
+  gEfiDhcp4ProtocolGuid                           ## SOMETIMES_CONSUMES
+  gEfiIp4Config2ProtocolGuid                      ## SOMETIMES_CONSUMES
+  gEfiManagedNetworkServiceBindingProtocolGuid    ## SOMETIMES_CONSUMES
+  gEfiManagedNetworkProtocolGuid                  ## SOMETIMES_CONSUMES
+  
+  gEfiDns6ServiceBindingProtocolGuid              ## BY_START
+  gEfiDns6ProtocolGuid                            ## BY_START
+  gEfiUdp6ServiceBindingProtocolGuid              ## TO_START
+  gEfiUdp6ProtocolGuid                            ## TO_START
+  gEfiDhcp6ServiceBindingProtocolGuid             ## SOMETIMES_CONSUMES
+  gEfiDhcp6ProtocolGuid                           ## SOMETIMES_CONSUMES
+
+
+[Guids]
+