CA1416: Validate platform compatibility

[davidjamartin]

As the event log is only supported on the Windows Platform, should the classes be decorated with the SupportedOSPlatform attribute?

[SupportedOSPlatform("windows")]

See here for more information:
https://docs.microsoft.com/en-gb/dotnet/fundamentals/code-analysis/quality-rules/ca1416

[gfoidl]

This would make sense, especially as there is

serilog-sinks-eventlog/src/Serilog.Sinks.EventLog/LoggerConfigurationEventLogExtensions.cs

Lines 68 to 71 in dac4ef3

	if (!RuntimeInformation.IsOSPlatform(OSPlatform.Windows))
	{
	throw new PlatformNotSupportedException(RuntimeInformation.OSDescription);
	}

[Numpsy]

Is this fixed now?
ref #52 / #58