This removes the last usage of `NOD_static_types.h` after #132815. It does so by
essentially inlining it into `rna_nodetree.cc` in a more compact way.
To avoid the need for especial cases for some nodes, all node-specific functions
now also take the `BlenderRNA` as parameter instead of only the `StructRNA`.
This allows such node-specific functions to register additional subtypes if
necessary. I think it should be possible to use this to fully define more
complex dynamic nodes such as repeat zone nodes, but that's not included in this
patch.
Now a line to define a node rna struct looks like so: `define("GeometryNode",
"GeometryNodePointsOfCurve");`
The `GeometryNode` part of it is intentionally somewhat redundant to allow for
better searchability.
Pull Request: https://projects.blender.org/blender/blender/pulls/132823
b1d7e8fcb1