Fix console logging performance

[victorbush]

NeFS Edit logs directly to the standard output. This is then output into the console form text box.

This has a major impact on performance when logging a lot of items consecutively (for example, if a file has a lot of errors during loading, like game.nefs).

A few options:

• Find a way to queue log messages and efficiently write them out to the console.
• Disable console logging by default and add a switch to enable/disable console logging.
• Remove console logging and add option to log to file.