There are now two types of asset management:
1. ID-indexed assets, where IDs are not necessarily sequential
2. name-indexed assets
Name-indexed assets can have additional archives added at run-time. This
is to support the CGManager.LoadArchive function used in Rance Quest
Magnum.
Name-indexed assets always use .afa archives. ID-indexed assets mostly
use .ald archives, except for Daiteikoku and Shaman's Sanctuary.
asset_get_by_name is now case insensitive and ignores the file
extension.
asset_exists and asset_get now take 1-indexed IDs.
Custom CG indexing code for Shaman's Sanctuary is now removed and
replaced with a proper implementation of afa v1 archives in libsys4.
Implement a new interface for managing archives. This is mainly to
support loading afa archives alongside ald archives.
Also included here is some code for creating an index for afa CG
archives (the numbers used to reference CGs in afa archives correspond
to the file name, not the position in the archive).
kichikuou