Could we add support of wordpress-core type?

Hi, I've just found that `composer/installer` doesn't support `wordpress-core` type. Having this type really helps to install Wordpress in a separate directory where you want.
I really can't understand why all issues were closed with a request for implementation. But it would make the installation quite convenient.

List of closed issues:
- https://github.com/composer/installers/issues/129
- https://github.com/composer/installers/issues/77

WordPress has not been using Composer approach for 20 years and will not use it in the nearest future. What I suggest - help developers install Wordpress as `wordpress-core` package in a custom directory.
In that case, developers don't need to use unofficial installers for it, which works really badly. It can be more standardized. Ultimately we did it for `wordpress-plugin` and `wordpress-theme`.
Please, don't close this issue, let's give the a chance community to put their thoughts also.