Added support for defining macros in Rust within the macro system

Also fixed a lot of bugs

orchid-host/src/tree.rs

@@ -4,10 +4,10 @@ use std::cell::RefCell;
 use std::rc::{Rc, Weak};
 use std::slice;
 
-use async_lock::RwLock;
 use async_once_cell::OnceCell;
 use derive_destructure::destructure;
 use futures::{FutureExt, StreamExt, stream};
+use futures_locks::RwLock;
 use hashbrown::HashMap;
 use hashbrown::hash_map::Entry;
 use itertools::Itertools;