Add protocol for simple access to the IPMI System Event Log

[cfernald]

Description

This pull request creates a DXE module and protocol to allow simple access to the IPMI System Event Log. This protocol is intended to be used by boot loaders, diagnostics tools, and other non-system components to allow less privileged access to the SEL.

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

How This Was Tested

Tested on local emulated machine.

Integration Instructions

N/A

[codecov-commenter]

Codecov Report

Attention: 47 lines in your changes are missing coverage. Please review.

Comparison is base (83f79a2) 26.04% compared to head (5c965a3) 25.80%.

Files	Patch %	Lines
IpmiFeaturePkg/IpmiSel/IpmiSel.c	0.00%	47 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #202      +/-   ##
==========================================
- Coverage   26.04%   25.80%   -0.25%     
==========================================
  Files          43       44       +1     
  Lines        3195     3248      +53     
  Branches      270      271       +1     
==========================================
+ Hits          832      838       +6     
- Misses       2357     2404      +47     
  Partials        6        6              

Flag	Coverage Δ
IpmiFeaturePkg	25.80% <14.54%> (-0.25%)	⬇️

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[apop5]

Looks good to me