Restore manganis optimizations (#3195)

* Create a crate for constant serialization of config structs for manganis
* use SerializeConst for the image asset builder
* switch to a declarative macro for assets
* add serializable options for each asset type
* implement the new manganis macro
* optimize assets in the CLI
* Fix assets with dioxus formattable
* reduce fuzzing test limits
* use the new syntax in examples
* fix avif support
* Fix manganis doc tests
* cache asset optimization
* Split out asset and bundled asset
* make hash pointer width independent
* Fix manganis macro docs
* add constvec::is_empty method to fix clippy lint
* remove nasm feature
* simplify test_rsplit_once test so typos passes
* revert example change from clippy fix
* always accept unix paths
* fix windows path seperator
* fix folder asset hash
* Optimize assets in a blocking task
* Fix asset options docs
* Document Asset and BundledAsset
* simplify the linker macro a bit
* add more docs to AssetParser expansion
* add image format helpers
* Split by  both unix and windows path separators and take the smallest one

packages/const-serialize/tests/tuples.rs

@@ -0,0 +1,28 @@
+use const_serialize::{deserialize_const, serialize_const, ConstVec};
+
+#[test]
+fn test_serialize_const_layout_tuple() {
+    let mut buf = ConstVec::new();
+    buf = serialize_const(&(1234u32, 5678u16), buf);
+    let buf = buf.read();
+    assert_eq!(
+        deserialize_const!((u32, u16), buf).unwrap().1,
+        (1234u32, 5678u16)
+    );
+
+    let mut buf = ConstVec::new();
+    buf = serialize_const(&(1234f64, 5678u16, 90u8), buf);
+    let buf = buf.read();
+    assert_eq!(
+        deserialize_const!((f64, u16, u8), buf).unwrap().1,
+        (1234f64, 5678u16, 90u8)
+    );
+
+    let mut buf = ConstVec::new();
+    buf = serialize_const(&(1234u32, 5678u16, 90u8, 1000000f64), buf);
+    let buf = buf.read();
+    assert_eq!(
+        deserialize_const!((u32, u16, u8, f64), buf).unwrap().1,
+        (1234u32, 5678u16, 90u8, 1000000f64)
+    );
+}