PrmPkg/Application/PrmInfo: Add initial application

Adds a new UEFI application called "PrmInfo" that allows a user
to display and test Platform Runtime Mechanism (PRM) modules.

Execute the application help command for detailed usage
instructions and examples of how to use the application:
  "PrmInfo -?"

This application is intended to be helpful during PRM enabling
by allowing the user to:

1. Confirm that their firmware port of the PRM infrastructure
   implemented in this package is functioning correctly.

2. Quickly get information about what PRM modules and handlers
   are present on a given system.

3. Quickly test PRM handlers without booting to a fully featured
   operating system.

4. Develop and exercise PRM handlers prior to the availability of
   an operating system that is PRM aware.

Adds a brief section to Readme.md about the PrmInfo UEFI application
with a link to allow the reader to find more information about the
application if interested.

Cc: Andrew Fish <afish@apple.com>
Cc: Kang Gao <kang.gao@intel.com>
Cc: Michael D Kinney <michael.d.kinney@intel.com>
Cc: Michael Kubacki <michael.kubacki@microsoft.com>
Cc: Leif Lindholm <leif@nuviainc.com>
Cc: Benjamin You <benjamin.you@intel.com>
Cc: Liu Yun <yun.y.liu@intel.com>
Cc: Ankit Sinha <ankit.sinha@intel.com>
Cc: Nate DeSimone <nathaniel.l.desimone@intel.com>
Signed-off-by: Michael Kubacki <michael.kubacki@microsoft.com>
Acked-by: Michael D Kinney <michael.d.kinney@intel.com>
Acked-by: Liming Gao <gaoliming@byosoft.com.cn>
Acked-by: Leif Lindholm <quic_llindhol@quicinc.com>
Reviewed-by: Ankit Sinha <ankit.sinha@intel.com>

PrmPkg/Application/PrmInfo/PrmInfo.inf

@@ -0,0 +1,66 @@
+## @file
+# PrmInfo.inf
+#
+# Reports information about the PRM configuration currently loaded on the system.
+#
+# Copyright (C) Microsoft Corporation. All rights reserved.
+# SPDX-License-Identifier: BSD-2-Clause-Patent
+#
+##
+
+[Defines]
+  INF_VERSION                    = 0x00010017
+  BASE_NAME                      = PrmInfo
+  FILE_GUID                      = F26C503B-BD8E-4274-A80B-2C4E20FADA6E
+  MODULE_TYPE                    = UEFI_APPLICATION
+  VERSION_STRING                 = 1.0
+  ENTRY_POINT                    = UefiMain
+  UEFI_HII_RESOURCE_SECTION      = TRUE
+  MODULE_UNI_FILE                = PrmInfo.uni
+
+#
+# The following information is for reference only and not required by the build tools.
+#
+#  VALID_ARCHITECTURES           = IA32 X64 ARM AARCH64
+#
+
+[Sources]
+  PrmInfoStrings.uni
+  PrmInfo.h
+  PrmInfo.c
+
+[Packages]
+  MdePkg/MdePkg.dec
+  MdeModulePkg/MdeModulePkg.dec
+  ShellPkg/ShellPkg.dec
+  PrmPkg/PrmPkg.dec
+
+[LibraryClasses]
+  BaseLib
+  BaseMemoryLib
+  DebugLib
+  HiiLib
+  MemoryAllocationLib
+  PcdLib
+  PrmContextBufferLib
+  PrmModuleDiscoveryLib
+  PrmPeCoffLib
+  ShellLib
+  TimerLib
+  UefiApplicationEntryPoint
+  UefiBootServicesTableLib
+  UefiHiiServicesLib
+  UefiLib
+
+[Pcd]
+   gPrmPkgTokenSpaceGuid.PcdPrmInfoPrintHandlerExecutionTime
+
+[Protocols]
+  gEfiHiiPackageListProtocolGuid    ## CONSUMES
+
+[Guids]
+  gPrmHiiGuid
+  gZeroGuid
+
+[UserExtensions.TianoCore."ExtraFiles"]
+  PrmInfoExtra.uni