Make duplicating folders also duplicate its children (#1178)

* Latest changes

* Add layer attempt

* layer tree is now correct after duplicating layers

* Latest changes

* Latest Changes

* Recursive idea

* Moving Layers to Dup Folder - not done

* latest changes

* latest progress

* Latest Changes

* Latest Changes

* Latest Changes

* Latest

* Latest

* Latest

* Duplicating Folders works

* Initial Refactoring

* Ready for QA

* Doesn't select all the children after duplicate anymore

* First pass code review with major cleanup

* Removed unused next_asssignment_id function and updated FolderLayer struct

* Removed unused logic

* First iteration of cleaning up the code

* Added Ollie's suggestions

* Code review cleanup

---------

Co-authored-by: Ollie Dolan <olliedolan10@gmail.com>
Co-authored-by: Keavon Chambers <keavon@keavon.com>

document-legacy/src/response.rs

@@ -11,8 +11,12 @@ pub enum DocumentResponse {
 	FolderChanged {
 		path: Vec<LayerId>,
 	},
+	AddSelectedLayer {
+		additional_layers: Vec<Vec<LayerId>>,
+	},
 	CreatedLayer {
 		path: Vec<LayerId>,
+		is_selected: bool,
 	},
 	DeletedLayer {
 		path: Vec<LayerId>,
@@ -21,6 +25,11 @@ pub enum DocumentResponse {
 	LayerChanged {
 		path: Vec<LayerId>,
 	},
+	MoveSelectedLayersTo {
+		folder_path: Vec<LayerId>,
+		insert_index: isize,
+		reverse_index: bool,
+	},
 	DeletedSelectedManipulatorPoints,
 }
 
@@ -29,10 +38,12 @@ impl fmt::Display for DocumentResponse {
 		match self {
 			DocumentResponse::DocumentChanged { .. } => write!(f, "DocumentChanged"),
 			DocumentResponse::FolderChanged { .. } => write!(f, "FolderChanged"),
+			DocumentResponse::AddSelectedLayer { .. } => write!(f, "AddSelectedLayer"),
 			DocumentResponse::CreatedLayer { .. } => write!(f, "CreatedLayer"),
 			DocumentResponse::LayerChanged { .. } => write!(f, "LayerChanged"),
 			DocumentResponse::DeletedLayer { .. } => write!(f, "DeleteLayer"),
 			DocumentResponse::DeletedSelectedManipulatorPoints { .. } => write!(f, "DeletedSelectedManipulatorPoints"),
+			DocumentResponse::MoveSelectedLayersTo { .. } => write!(f, "MoveSelectedLayersTo"),
 		}
 	}
 }