Added support for defining macros in Rust within the macro system

Also fixed a lot of bugs

orchid-extension/src/tree.rs

@@ -173,7 +173,7 @@ impl GenMember {
 		let name = ctx.sys().i().i::<String>(&self.name).await;
 		let kind = self.kind.into_api(&mut ctx.push_path(name.clone())).await;
 		let comments =
-			join_all(self.comments.iter().map(|cmt| async { ctx.sys().i().i(cmt).await.to_api() })).await;
+			join_all(self.comments.iter().map(async |cmt| ctx.sys().i().i(cmt).await.to_api())).await;
 		api::Member { kind, name: name.to_api(), comments, exported: self.public }
 	}
 }