MdePkg: Add Google Mock Protocol for SmmCommunication

[SeolforHsieh]

Description

Added MockSmmCommunication to be used by Googletests

• Impacts functionality?
• Impacts security?
• Breaking change?
• Includes tests?
• Includes documentation?
• Backport to release branch?

How This Was Tested

Added MockSmmCommunication to GoogleTests and able to successfully include its functions

Integration Instructions

N/A

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 1.60%. Comparing base (fabbe77) to head (5857c2d).

Additional details and impacted files

@@             Coverage Diff             @@
##           dev/202405    #1266   +/-   ##
===========================================
  Coverage        1.60%    1.60%           
===========================================
  Files            1379     1379           
  Lines          359694   359694           
  Branches         5524     5524           
===========================================
  Hits             5760     5760           
  Misses         353827   353827           
  Partials          107      107           

Flag	Coverage Δ
MdeModulePkg	0.67% <ø> (ø)
MdePkg	5.59% <ø> (ø)
NetworkPkg	0.55% <ø> (ø)
PolicyServicePkg	30.41% <ø> (ø)
UefiCpuPkg	4.68% <ø> (ø)

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[apop5]

There has been a slight change in how google test mocks need to be created for protcols. The documentation update is in PR form for edk2:

https://github.com/tianocore/edk2/pull/10608/files

As an example please see the file MdePkg/Test/Mock/Include/GoogleTest/Protocol/MockHash2.h in in the PR:

https://github.com/tianocore/edk2/pull/5950/files#diff-e3931c282ee337a99aae98cd69d685d9619e1db8c9ba47b9e23fc5b606105361R70

Also, since we are trying to upstream these changese into EDK2 at the same time to prevent conflicts in the future, can you also open this PR into edk2? Please see the instructions in: https://github.com/tianocore/tianocore.github.io/wiki/EDK-II-Development-Process

[SeolforHsieh]

PR of edk2: tianocore/edk2#10705