* Disable setting array length of dynamic array for now, this was not
implemented correct, and it's not really needed now.
* Allow all dimensions to be dynamic size, not just the first.
* Change storage of multidimensional to be simpler.
* Rename API functions to be more compact.
* Fix some bugs in the implementation.
* RenderLayer.rect and RenderPass.rect use a multidimensional
dynamic array now.