FmpDevicePkg: Add library instances

https://bugzilla.tianocore.org/show_bug.cgi?id=922

Based on content from the following branch:

https://github.com/Microsoft/MS_UEFI/tree/share/MsCapsuleSupport/MsCapsuleUpdatePkg

Add library instances for FmpDeviceLib, CapsuleUpdatePolicyLib,
and FmpPayloadHeaderLib.

Library Classes
===============
* FmpDeviceLibNull - Non-functional template of the FmpDeviceLib
  that can be used as a starting point for an FmpDeviceLib for
  a specific firmware storage device.
* CapsuleUpdatePolicyLibNull - Functional template of the
  CapsuleUpdatePolicyLib that can be used as a starting point
  of a platform specific implementation.
* FmpPayloadHeaderLibV1 - Version 1 of the FmpPayloadHeaderLib.
  This library is indented to be used "as is" with no need for
  any device specific or platform specific changes.

Cc: Sean Brogan <sean.brogan@microsoft.com>
Cc: Jiewen Yao <jiewen.yao@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Michael D Kinney <michael.d.kinney@intel.com>
Reviewed-by: Star Zeng <star.zeng@intel.com>

FmpDevicePkg/Library/CapsuleUpdatePolicyLibNull/CapsuleUpdatePolicyLibNull.uni

@@ -0,0 +1,17 @@
+// /** @file
+// Provides platform policy services used during a capsule update.
+//
+// Copyright (c) 2018, 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.
+//
+// **/
+
+#string STR_MODULE_ABSTRACT     #language en-US  "Provides platform policy services used during a capsule update."
+
+#string STR_MODULE_DESCRIPTION  #language en-US  "Provides platform policy services used during a capsule update."