Fix up `Client.General.logtofile`

[ForNeVeR]

We have an internal flag CodeImp.Bloodmasters.Client.General.logtofile that's only used in the server code, and a corresponding field CodeImp.Bloodmasters.Client.General.logfilename.

Let's do something appropriate with it, like inject a dependency with the flag to the corresponding server components, or something.

See #45 in the code to locate the flag.