MdePkg: Add MockUefiBootServicesTableLib

This commit adds a mock library for UefiBootServicesTableLib.

Cc: Michael D Kinney <michael.d.kinney@intel.com>
Cc: Liming Gao <gaoliming@byosoft.com.cn>
Cc: Zhiguang Liu <zhiguang.liu@intel.com>

Signed-off-by: Doug Flick [MSFT] <doug.edk2@gmail.com>
Reviewed-by: Liming Gao <gaoliming@byosoft.com.cn>

MdePkg/Test/Mock/Library/GoogleTest/MockUefiBootServicesTableLib/MockUefiBootServicesTableLib.inf

@@ -0,0 +1,32 @@
+## @file
+#  Mock implementation of the UEFI Boot Services Table Library.
+#
+#  Copyright (c) Microsoft Corporation.
+#  SPDX-License-Identifier: BSD-2-Clause-Patent
+#
+##
+
+[Defines]
+  INF_VERSION                    = 0x00010005
+  BASE_NAME                      = MockUefiBootServicesTableLib
+  FILE_GUID                      = 67EA4614-E276-49EC-9AE6-B97ACCEA676E
+  MODULE_TYPE                    = HOST_APPLICATION
+  VERSION_STRING                 = 1.0
+  LIBRARY_CLASS                  = UefiBootServicesTableLib|HOST_APPLICATION
+
+#
+#  VALID_ARCHITECTURES           = IA32 X64 EBC
+#
+
+[Sources]
+  MockUefiBootServicesTableLib.cpp
+
+[LibraryClasses]
+  GoogleTestLib
+
+[Packages]
+  MdePkg/MdePkg.dec
+  UnitTestFrameworkPkg/UnitTestFrameworkPkg.dec
+
+[BuildOptions]
+  MSFT:*_*_*_CC_FLAGS = /EHsc