Large file fixes

This release has some minor breaking changes:

• ExtractWithOptions now uses a *ExtractionOptions instead of ExtractionOptions. DefaultOptions now returns a pointer as well.
• ExtractionOptions.FolderPerm is now ExtractionOptions.Perm and is only used when ExtractionOptions.IgnorePerm is set.

Fixes:

• Extracting files is now properly limited. This prevents out of control memory usage when extracting larger archives.
• Folder's permissions are only set after all it's contents are extracted.
  • Fixes issues relating to the user not having permission to write the folder's contents

Other:

• Added ExtractVerbose and ExtractIgnorePermissions for improved ease of use.