MdeModulePkg: implement NULL instance of MemoryAllocationLib library class

In order to permit MM_STANDALONE modules to be built without relying
on StandaloneMmPkg, provide a BASE type NULL implementation of
MemoryAllocationLib.

Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Reviewed-by: Jian J Wang <jian.j.wang@intel.com>
Reviewed-by: Star Zeng <star.zeng@intel.com>.

MdeModulePkg/Library/BaseMemoryAllocationLibNull/BaseMemoryAllocationLibNull.uni

@@ -0,0 +1,20 @@
+// /** @file
+// Null instance of Memory Allocation Library
+//
+// Copyright (c) 2007 - 2014, Intel Corporation. All rights reserved.<BR>
+// Copyright (c) 2018, Linaro, Ltd. 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.
+//
+// **/
+
+
+#string STR_MODULE_ABSTRACT             #language en-US "Null instance of Memory Allocation Library"
+
+#string STR_MODULE_DESCRIPTION          #language en-US "Memory Allocation Library for build testing only."
+