[oshdb-filter] add additional geometry based filters

[tyrasd]

Description

Adds the following new filters:

• perimeter – select polygons based on the length of their boundary
• geometry.vertices – selects geometries by their number of points (note: the end point of polygon rings count twice)
• geometry.inners/geometry.outers – selects (multi)polygons by their number of parts (outer or inner rings)
• geometry.roundness – selects polygons by their compactness value (using the Polsby-Popper test score)
• geometry.squareness – selects geometries by their squareness value (see paper for the definition)

Corresponding issue

See #311

todo

• add to documentation
• add to changelog

Checklist

• My code follows the code-style rules, and I have checked on the static analyses and benchmark (if applicable) results
• I have commented my code
• I have written javadoc (required for public classes and methods)
• I have added sufficient unit tests
• I have made corresponding changes to the documentation
• I have updated the CHANGELOG.md
• I have adjusted the examples or created an issue in the corresponding repository
• I have adjusted the benchmark or created an issue in the corresponding repository

[tyrasd]

this is now ready to be reviewed 😊

[joker234]

Overall very good test coverage. Thanks for the PR!

General remark: Tests could be organized to ensure more fine-grained test titles (e.g. use existing comments about geometry types and spilt tests there). @DisplayName could be used to set an explizit descriptive name for the test. For more hirarchy, @Nested could be used. Examples see: https://blogs.oracle.com/javamagazine/post/beyond-the-simple-an-in-depth-look-at-junit-5s-nested-tests-dynamic-tests-parameterized-tests-and-extensions