The same characters as in stdout are now used to draw bars in console window on macOS
All messages are treated as in ISO Latin 1 encoding and bars looked like garbage output
Windows version uses ANSI_CHARSET to handle the corresponding text
This solves the problem like in https://github.com/alexey-lysiuk/gzdoom/issues/63:
*** Assertion failure in -[NSTextFieldCell _objectValue:forString:errorDescription:], /Library/Caches/com.apple.xbs/Sources/AppKit/AppKit-1404.47/AppKit.subproj/NSCell.m:1684
Invalid parameter not satisfying: aString != nil
Added temporary solution for the same foreground and background colors of the title in OS X startup window
It's used in graphical startup screen, with Hexen style in particular (for example WolfenDoom - Blade of Agony)
Native OS X backend doesn't implement this yet
Attempts to output errors with bad characters encountered during text lumps parsing were failed miserably because of UTF-8 conversion
Example: loading of GZ-Models-r16.pk3 with GZDoom caused 'NSConcreteAttributedString initWithString:: nil value' exception
During loading of .pk3 that stores hundred of .wad's significant amount of time were spent on scrolling text to the last line
The same applies to other cases like output of thousands warnings/errors
There is no need to close (and thus deallocate) console window explicitly
This will be done by autorelease pool in application controller event loop
OS X with GC and/or ARC was not affected by this issue
Older versions like 10.4 or 10.5 crashed because of double deallocation
The resize indicator overlapped with progress bar and Quit/Cancel button on 10.6 and older versions
OS X 10.7 and newer don't have this indicator at all
