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1a1adb83ac
This commit introduces error marker functionality for k-mers with odd lengths up to 31. The top 2 bits of each k-mer are now reserved for error coding (0-3), allowing for error detection and correction capabilities. Key changes include: - Added constants KmerErrorMask and KmerSequenceMask for bit manipulation - Implemented SetKmerError, GetKmerError, and ClearKmerError functions - Updated EncodeKmers, ExtractSuperKmers, EncodeNormalizedKmers functions to enforce k ≤ 31 - Enhanced ReverseComplement to preserve error bits during reverse complement operations - Added comprehensive tests for error marker functionality including edge cases and integration tests The maximum k-mer size is now capped at 31 to accommodate the error bits, ensuring that k-mers with odd lengths ≤ 31 utilize only 62 bits of the 64-bit uint64, leaving the top 2 bits available for error coding.