Support List property in useObject (#4274)

* Phase 2: Add cache support for Realm.List in Realm.Object

Introduces the cachedObject which adds a proxy around a Realm.Object
to handle rerendering on changes and to cache references to all
Realm.Objects within a Realm.List.

* Fix types for Object Listener

When a class extends Realm.Object, adding a listener to an instance of the
object would not correctly type the object returned in the callback.
With this change, the callback returns an object of the same type as the
instance it was called from.

* Apply suggestions from code review

* Refactor useObject render tests into a single test suite

.vscode/launch.json

@@ -133,9 +133,25 @@
             "cwd": "${workspaceFolder}/integration-tests/tests",
             "preLaunchTask": "Build Node Tests"
         },
+        {
+            "type": "lldb",
+            "name": "LLDB Realm React Tests",
+            "request": "launch",
+            "console": "integratedTerminal",
+            "internalConsoleOptions": "neverOpen",
+            "disableOptimisticBPs": true,
+            "cwd": "${workspaceFolder}/packages/realm-react",
+            "program": "node",
+            "args": [
+                "node_modules/.bin/jest",
+                "--runInBand",
+                "--watchAll=false",
+                "--testNamePattern=${input:testNamePattern}"
+            ]
+        },
         {
             "type": "node",
-            "name": "vscode-jest-tests",
+            "name": "Realm React Tests",
             "request": "launch",
             "console": "integratedTerminal",
             "internalConsoleOptions": "neverOpen",