Support for Shift-JIS file names

The archive packing / unpacking logic now properly handles Shift-JIS encoded file names within ykc archives.

Auto Conversion

This has been a feature for a long time, but I've never created a proper release for it.
The unpack and pack tasks now automatically convert between binary and source versions of graphics and scripts.

Yuka Autopatcher

New tasks:

• auto Tries to automatically determine the processing method for the given arguments. is used if the first non-flag argument is not a registered command.
• patch <target.ykc> <patch.ykc> copies all files from one archive to another.

The patch task can do more than just that:
yuka patch --init <fetch-url> [<game-dir> [<patch-dir>]] will initialize a new patch directory and a .ypl (yuka patch log) file.
Opening the patch file with yukatool or passing it as the first argument to yuka patch will automatically download a list of patch files from the specified fetch url (in non-empty) and proceed to apply all patches in the patch directory (patches won't be installed if already applied).

Support for YukaGraphics

New tasks:

• unpack Unpacks a yuka archive (.ykc) to a directory tree
• unwrap Converts a yuka graphics file (.ykg) to png and optional meta information (.meta)
• wrap Converts a png file and optional meta information (.meta) to a yuka graphics file (.ykg)

Initial release

The very first release of yukatool.

The following operations are supported:

• help lists available tasks
• split splits a script file into it's individual sectors (code, index, data) and generates a comprehensible decomposition of the former two
• decompile decompiles a binary yuka script (.yks) or a directory tree full of scripts
• compile compiles a yoka script (.ykd) with attached string data (.csv) or a directory tree full of scripts
• pack packs the contents of a directory into a yuka archive (.ykc)