[development] Extend database abstraction layer, to include table creation.

[Karoly Negyesi]

> Drupal 4.7's new forms API is a prime example.  It is obviously great in  
> terms of security and flexibility, but at the same time, it is also  
> _much_ harder to use than the old form API.  What does that mean?  Well,  
> that some people can make really fancy forms but that the majority of  
> the people will find it more difficult to make basic forms.

The AJAX form builder, I hope, will make this easier. It will be done as a  
SoC project.