* uri: Streamline implementation of `uriparser_parse_uri_ex()`
Avoid the use of a macro and streamline the logic.
* uri: Improve exceptions for `Uri\Rfc3986\Uri`
* uri: Allow empty URIs for RFC3986
* NEWS
* uri: Improve ext/uri/tests/004.phpt for empty URIs
The `defaultMemoryManager` is only available via a non-public
header and is not supposed to be used by users of the library [1].
It also has a very generic name, further indicating that it is not
supposed to be used.
Instead pass the memory manager explicitly, which is how the library is
supposed to be used.
[1] https://github.com/uriparser/uriparser/issues/52#issuecomment-453853700
Relates to #14461 and https://wiki.php.net/rfc/url_parsing_api
Co-authored-by: Niels Dossche <7771979+nielsdos@users.noreply.github.com>
Co-authored-by: Tim Düsterhus <tim@tideways-gmbh.com>
