v4.3.0

New features:

• add sourmash sig grep (#1864)
• add sourmash sig summarize (#1837, #1863)
• add --include-db-pattern and --exclude-db-pattern to many commands (#1871)
• update lca summarize output to output total counts (#1838)

Bug fixes:

• fix sourmash prefetch to work when db scaled is larger than query scaled (#1870)
• fix sourmash prefetch for multiple ksizes in database (#1866)
• allow missing columns in tax CSV files (#1869)
• fix containment calculation for nodegraphs (#1862)
• fix tax prepare SQL code for empty/blank taxonomic ranks (#1843)

Cleanup and documentation fixes:

• clean up 'describe' a little bit, add a test (#1861)
• add --output-dir as alias for every --outdir (#1817)
• fix doc titles in command-line.md and update description a bit (#1874)

Developer updates:

• move greyhound-core into sourmash (#1238)
• drop Python 3.7, default most of CI to Python 3.10 (#1839)
• reorganize traits for easier wasm and native compilation (#1836)
• update asv to newly released version (#1834)
• pin setuptools < 60 (#1879)