log file is created in situations it doesn't need to be

[monkeyman192]

Describe the bug When simply calling MBINCompiler.exe help a log file is generated in the cwd.

Expected behavior This is clearly not needed, so no log file should be produced in this case.

Additional Information Log MBINCompiler.log

There are probably other commands where we don't need a log file...

[chrispurnell]

I think logging is only needed for the "convert" command.