Instance tables refactor part 6: unwrap VectorData and ImageFrame from single-row to multi-row tables (#2684)

* Start refactoring the boolean operations code

* Switch to iterators in the boolean operations code

* Make boolean operations work on rows of a table, not Vecs of single-row tables

* Remove more .transform()

* Simplify brush code

* Attempt to remove .transform() by using Instance<Image<Color>> in brush code, but a regression is introduced

* Improve blend_image_closure

* Simplify

* Remove leading underscore from type arguments

* Remove .transform() from ImageFrameTable<P> and fix Mask node behavior on stencils not fully overlapping its target image

* Remove more .one_instance_ref()

* Fully remove .one_instance_ref() and improve the 'Combine Channels' node robustness

* Fully remove .once_instance_mut()

* Fix tests

* Remove .one_empty_image()

* Make Instances<T>::default() return an empty table for images, but still not yet vector

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Co-authored-by: hypercube <0hypercube@gmail.com>

node-graph/graph-craft/src/document/value.rs

@@ -109,9 +109,7 @@ macro_rules! tagged_value {
 			}
 			pub fn from_type(input: &Type) -> Option<Self> {
 				match input {
-					Type::Generic(_) => {
-						None
-					}
+					Type::Generic(_) => None,
 					Type::Concrete(concrete_type) => {
 						let internal_id = concrete_type.id?;
 						use std::any::TypeId;