v0.1.0 of glb_stream

A pure-Dart streaming parser for glTF 2.0 binary container (.glb) files. Yields header + JSON chunk + binary chunk progressively from any Stream of bytes. Changelog excerpt: - Initial release. - GlbStreamParser.parse(Stream>)yields GlbHeader, GlbJsonChunk, and GlbBinaryChunkDataevents progressively. - Pure Dart; no Flutter dependency; no native bindings; no dart:iodependency (works on web). - Khronos glTF 2.0 GLB container spec compliance (header + JSON chunk + optional BIN chunk; 4-byte chunk alignment with 0x20/0x00padding). - 6 tests covering: minimal JSON-only GLB, GLB with binary chunk, progressive streaming across small reads (4 KB BIN [...]