Upgrade to rbx_dom_weak 2.0 (#377)

* Mostly mechanical port bits

* Almost there

* It builds again!

* Turn on all the code again

* Tests compiling but not passing

* Stub work for value resolution

* Implement resolution minus enums and derived properties

* Implement property descriptor resolution

* Update referent snapshots

* Update unions test project

Using a place file instead of a model yields better
error messages in Roblox Studio.

* Add easy shortcut to testing with local rbx-dom

* Update rbx-dom

* Add enum resolution

* Update init.meta.json to use UnresolvedValue

* Expand value resolution support, add test

* Filter SharedString values from web API

* Add 'property' builder method to InstanceSnapshot

* Change InstanceSnapshot/InstanceBuilder boundary

* Fix remove_file crash

* rustfmt

* Update to latest rbx_dom_lua

* Update dependencies, including rbx_dom_weak

* Update to latest rbx-dom

* Update dependencies

* Update rbx-dom, fixing more bugs

* Remove experimental warning on binary place builds

* Remove unused imports

src/cli/plugin.rs

@@ -49,7 +49,7 @@ pub fn install_plugin() -> Result<()> {
     let tree = session.tree();
     let root_id = tree.get_root_id();
 
-    rbx_binary::encode(tree.inner(), &[root_id], &mut file)?;
+    rbx_binary::to_writer_default(&mut file, tree.inner(), &[root_id])?;
 
     Ok(())
 }