GRP Converter and GRPAPI updates

[ShadowFlare]

GRP converter update! The changes:

- Added RLE decoding support and error messages about unsupported formats.
- Added support for Microsoft RIFF and Jasc format palettes.
- Fixed transparency area for uncompressed GRP files.  This fixes the problem with interface graphics made with this converter.
- Changed the default alignment to the top-left for frames in uncompressed GRP files made from bitmaps of varying sizes.

http://sfsrealm.hopto.org/cgi-bin/downl ... rpConv.zip

Also, I found a bug in GRPAPI's detection of uncompressed GRP files with a blank first frame, which would make it not detect it as uncompressed, making it crash when trying to decode frames.  The issue was basically masked by one of the issues listed above, since the converter could not previously make grp files of the type that would be affected by this issue.  It is fixed in the update I uploaded today.

http://sfsrealm.hopto.org/dwnload.html#grpapi

[Lavarinth]

Shadowflare strikes again!