cbird v0.6.0

• Add weeds feature (recommended by r/user/traal)
• Search: Add max-threshold -p.mt which produces a result for every needle until threshold is exceeded
• Indexer: Use skip-loop-filter to speedup video indexing ~20%
• Indexer: Option to show all ignored files
• Indexer: Handle links sanely by default, add options i.links, -i.dups, -i.resolvefor other cases.
• Filters: Add -head/-tail
• Image view: difference image can align to template match
• Video view: fix issues with unequal frame rates
• Video view: export the aligned pair to Kdenlive
• Speedups: video compare view, differences image, -group-by