This allows us to merge different code paths for Tinsel V1 - V3 and
simplify the relevant code.
- Images are now obtained as a copy via GetImage(), which handles
endianess internally
- The GetImageFromFilm() / GetImageFromReel() wrappers have been removed
- Direct setting of the image palette has been removed in favor of
PokeInPalette(). This allows us to make image pointers const
- Struct packing has been removed from the IMAGE class, as we no
longer cast raw data to image pointers
- There is now a single IMAGE class for all Tinsel versions
This introduces a new helper method, GetFont(), which loads font data
using a memory stream and handles endianess reads internally. This
simplifies font loading and endianess handling considerably, and allows
for the usage of a common font struct for all engine versions
This is the second attempt. All the BE resources of DW1 Mac are
handled correctly now. Added READ_16, READ_32, FROM_16, FROM_32 and
TO_32 to handle all of the different cases where endianess is
already handled. Note that the game scripts are LE, so these
haven't been changed
