Migrate text layers to nodes (#1155)

* Initial work towards text to node

* Add the text generate node

* Implement live edit

* Fix merge error

* Cleanup text tool

* Implement text

* Fix transforms

* Fix broken image frame

* Double click to edit text

* Fix rendering text on load

* Moving whilst editing

* Better text properties

* Prevent changing vector when there is a Text node

* Push node api

* Use node fn macro

* Stable ids

* Image module as a seperate file

* Explain check for "Input Frame" node

* Code review

---------

Co-authored-by: Keavon Chambers <keavon@keavon.com>

libraries/bezier-rs/src/subpath/manipulators.rs

@@ -34,6 +34,16 @@ impl<ManipulatorGroupId: crate::Identifier> Subpath<ManipulatorGroupId> {
 		self.manipulator_groups.insert(index, group)
 	}
 
+	/// Push a manipulator group to the end.
+	pub fn push_manipulator_group(&mut self, group: ManipulatorGroup<ManipulatorGroupId>) {
+		self.manipulator_groups.push(group)
+	}
+
+	/// Get a mutable reference to the last manipulator
+	pub fn last_manipulator_group_mut(&mut self) -> Option<&mut ManipulatorGroup<ManipulatorGroupId>> {
+		self.manipulator_groups.last_mut()
+	}
+
 	/// Remove a manipulator group at an index.
 	pub fn remove_manipulator_group(&mut self, index: usize) -> ManipulatorGroup<ManipulatorGroupId> {
 		self.manipulator_groups.remove(index)