Vendor dependencies for 0.3.0 release

vendor/encase/tests/pass/wrappers.rs

@@ -0,0 +1,16 @@
+use core::cell::Cell;
+use encase::ShaderType;
+use std::{borrow::Cow, rc::Rc, sync::Arc};
+
+fn main() {}
+
+#[derive(ShaderType)]
+struct Test<'a> {
+    a: &'a u32,
+    b: &'a mut u32,
+    c: Box<u32>,
+    d: Cow<'a, u32>,
+    e: Rc<u32>,
+    f: Arc<u32>,
+    g: Cell<u32>,
+}