Added` Flag --clustering to make clustering optional Polygon validation
`Changed` Clustering is now optional.
`Fixed` Bug with PGPASSWORD not being recognized
2.1.0
`Changed` - The exporter does not close the connection - Compliance with cityJSON v2.0.0 - Exporter SQL uses the object_id instead of the id.
2.0.0
`Added` - exporter - --transform flag - sphinx docs - benchmark - unit tests
`Changed` - click instead of arg_parser - functionality of --overwrite and -I/--srid flags - filepath became an option instead of an argument - Shorter ReadMe - changes in data model: every object is given an integer id instead of the object id.
`Removed` - --append flag
1.2.0
`Added` - cjio - tests independent of postgres - logger - '--version' flag - some exceptions
`Changed` - merged README - default schema to 'cjdb'
1.1.0
`Removed` - cjdb_api, cli has import as single purpose. - --skip-existing flag, skipping is default. - sphinx docs
`Changed` - Switched to using poetry instead of pyenv. - renamed cli function from cj2pgsql to cjdb. - Yanked version 1.0.0 (No CLI)