0.21.0

This release brings a single-file bundle containing all extensions from the main set:

• sqlean.so for Linux
• sqlean.dll for Windows
• sqlean.dylib for macOS

The bundle loads like other extensions, e.g:

sqlite> .load ./sqlean
sqlite> select median(value) from generate_series(1, 99);

When loaded, it activates functions from all existing extensions (except ipaddr, which does not work on Windows).