v0.1.0-dev.1 of vcdiff_decoder

VCDIFF (RFC 3284) decoder implementation in Dart for efficient binary differencing and compression. Changelog excerpt: ### Added - Initial VCDIFF (RFC 3284) decoder implementation - Support for all VCDIFF instruction types: ADD, COPY, RUN - Address cache implementation for efficient decoding - Adler-32 checksum validation (VCD_ADLER32 extension) - Structured exception hierarchy: VcdiffException, InvalidMagicException, InvalidVersionException, InvalidFormatException, CorruptedDataException, InvalidChecksumException - Top-level decode(source, delta)convenience function - Decoderclass for reusing a[...]