MINIFICPP-2589 Refactor ConsumeWindowsEventLog

[fgerlits]

https://issues.apache.org/jira/browse/MINIFICPP-2589

• lots of renaming stuff
• use magic_enum instead of hand-rolled enum parsing
• some inlining / pulling out of methods
• unify the printing of Windows error messages using fmt::format

etc

Depends on #1985.

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