Added mock IpmiSelLib files

[v-bhavanisu]

Description

Added mock IpmiSelLib for use in GoogleTests

For details on how to complete these options and their meaning refer to CONTRIBUTING.md.

• Impacts functionality?
• Impacts security?
• Breaking change?
• Includes tests?
• Includes documentation?

How This Was Tested

Added to a GoogleTest and verified functionality

Integration Instructions

N/A

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 28.20%. Comparing base (62ed307) to head (03b88a5).

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #263   +/-   ##
=======================================
  Coverage   28.20%   28.20%           
=======================================
  Files          44       44           
  Lines        3003     3003           
  Branches      404      404           
=======================================
  Hits          847      847           
  Misses       2144     2144           
  Partials       12       12           

Flag	Coverage Δ
IpmiFeaturePkg	28.20% <ø> (ø)

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