Eventlog audit events

[304NotModified]

added optional property EntryType (layoutable), closes #289

With this property we can log to all various levels: Error, FailureAudit, Information, SuccessAudit & Warning. MSDN EventLogEntryType

If not set, then uses the backwards compatible behavior:

• LogLevel.Trace => EventLogEntryType.Information
• LogLevel.Debug => EventLogEntryType.Information
• LogLevel.Info => EventLogEntryType.Information
• LogLevel.Warn => EventLogEntryType.Warning
• LogLevel.Error => EventLogEntryType.Error
• LogLevel.Fatal => EventLogEntryType.Error

Doc:

<targets>
  <target xsi:type="EventLog"
          name="String"
          layout="Layout"
          machineName="String"
          source="String"
          category="Layout"
          eventId="Layout"
          entryType="Layout" <!-- new -->
          log="String" />
</targets>

Including unit tests, also unit tests for backwards compatible behavior

[304NotModified]

I will fix the build error. Maybe I should edit the .net 3.5 project first, as I used .Net 4 stuff (Enum.TryParse)

note for myself: https://stackoverflow.com/questions/15017151/implementation-of-enum-tryparse-in-net-3-5

[ghost]

@304NotModified So this makes it possible to use a fixed entry type? Would that make sense? I mean effectively ignoring the log level?

[304NotModified]

Well it's layoutable, so we can use conditions.

[ghost]

Of course didn't think about that