Attribute type and object class definitions are now parsed from their string
representation. Extensible filters are now supported.

Somewhat unrelated: Object.match_search and Object.get_search_result_entry
are replaced with Object.search. Object.compare_dn and Object.match_compare
are replaced with Object.compare.

Schema and object code now has extensive unit tests.

This control extension is enabled by default and works with existing
do_search handlers .

While "src/" seems to be the recommended way, too many (linter/testing/...)
tools have problems with it.