v2.0.0

• Updated to match the latest extractor interfaces in tatami.
• Renamed the oracle-aware slab caches to OracularSlabCache and OracularSubsettedSlabCache.
• Support caching of variable-size slabs via OracularVariableSlabCache.
• Optimized oracle-aware and LRU caches for repeated requests from the same slab.
• Cache classes can now report the maximum and current number of slabs.
• Added the ChunkDimensionStats class to manage per-dimension chunk stats.
• Replaced the TypicalSlabCacheWorkspace class with the simpler SlabCacheStats class.
• Cap the computed number of cached slabs at the maximum number of possible slabs for a given matrix. This includes the situation where the slabs or data elements have zero size (e.g., for sparse extraction with no requested values or indices).
• Added the DenseSlabFactory and SparseSlabFactory classes to create slabs from a contiguous buffer.
• Created dedicated *Options classes for each of the custom chunked matrices.