BISCOTTI v1.4.1 — CLI support for custom input/output files

This release introduces command-line parameters for flexible usage, allowing users to specify:

• --msa_file : Path to the input multiple sequence alignment file
• --clstr_file : Path to the CD-HIT cluster file
• --output_file : Path to save the resulting substitution matrix
• --nproc : Number of CPU cores to use for parallel computation

Additional improvements:

• Optimised performance for large datasets (>30k sequences)
• Henikoff weighting and BLOSUM-style log-odds scoring
• Updated documentation and examples for CLI usage