Add features to make interfacing with WorldChunkTool easier

[UncleClapton]

This PR adds two features.

1. A flag to accept all prompts, meaning the extraction process is completely automated and the program exits on complete.
2. Exit codes for convenient signaling to an executing program.

Exit Codes

Code	Description
0	Extraction success
1	Input file missing
2	oo2core_5_win64.dll file missing
3	Other exception occurred

Motivation

I have been working on a patch tool which automates the process of extracting, patching (applying mods), and installing text (GMD) files. I planned on using WorldChunkTool to extract chunk files, however I ran into the road block of detecting when the program errors, and dealing with user interaction when none is really needed. Implementing these two features would allow other tool to easily depend on this one to extract chunk files for use.