v0.0.50

Added

• (encoder) [breaking] gate encoder SIMD on the kernel features, drop the dead hash mix (#473)

Fixed

• (encode) search blocks that only look incompressible, and trim the dfast scan (#483)

Performance

• (encode) take the matcher's buffers once per frame, not by growth (#482)
• (encoder) hold each backend's index tables in one buffer (#479)
• (encoder) [breaking] read owned blocks straight into the matcher history (#477)
• (row) port the lazy parse, row/chain search and dictionary plan from upstream; match upstream CDict fill for the fast dict scan (#467)