Vendor dependencies for 0.3.0 release

vendor/taffy/examples/flexbox_gap.rs

@@ -0,0 +1,24 @@
+use taffy::prelude::*;
+
+// Creates three 20px x 20px children, evenly spaced 10px apart from each other
+// Thus the container is 80px x 20px.
+
+fn main() -> Result<(), taffy::TaffyError> {
+    let mut taffy: TaffyTree<()> = TaffyTree::new();
+
+    let child_style = Style { size: Size { width: length(20.0), height: length(20.0) }, ..Default::default() };
+    let child0 = taffy.new_leaf(child_style.clone())?;
+    let child1 = taffy.new_leaf(child_style.clone())?;
+    let child2 = taffy.new_leaf(child_style.clone())?;
+
+    let root = taffy.new_with_children(
+        Style { gap: Size { width: length(10.0), height: zero() }, ..Default::default() },
+        &[child0, child1, child2],
+    )?;
+
+    // Compute layout and print result
+    taffy.compute_layout(root, Size::MAX_CONTENT)?;
+    taffy.print_tree(root);
+
+    Ok(())
+}