Enigma VirtualBox unpacker

• Unpacker will refuse to run if there is not enough space in TMP folder and/or in working directory
• PE header size was calculated incorrectly in some cases
• TLS directory was not detected correctly for some files

Setting TMP folder to a RAM drive was a good idea in 1990s. Now it's year 2019 and you can't manage virtual memory better than Windows already do. But some people apparently still try, so I added checks to stop them from shooting themselves in the foot.

Molebox VS unpacker

• Added support for a very old version on Molebox VS, as reported by death

The fix was actually implemented a long time ago, I just didn't make the announcement.