Centrifuger v1.0.4

• Support creating the index for GTDB (https://github.com/mourisl/centrifuger/tree/master/indices#gtdb)
  • A pre-built index for GTDB r220 representative genomes is available at: https://www.dropbox.com/scl/fo/wtsermtdd62n1ttryuhwv/ADWTYiJA6Dh5gdbHmwC2nfo?rlkey=fgdpthjukcj1uhsjrcv35j927&dl=0
• Fix a serious bug in the silva-download.pl script
• Support the file to tax ID mapping through the "-l" option. This removes the need to create the sequence ID to tax ID mapping file
• Improve the index building efficiency
• When calculating the LCA, force the assignment to the root if it goes beyond the superkingdom level (#9 )
• Fix a serious bug in centrifuger-download when multi-threading (#8 )