Add com.android.virt.accessor_demo

This provides a reference IAccessor implementation.

Test: atest vm_accessor_test
Bug: 349578050
Change-Id: I956e8e7706c43c8e672ec669d4c8912f09635061
diff --git a/demo_accessor/apex/manifest.json b/demo_accessor/apex/manifest.json
new file mode 100644
index 0000000..a09523a
--- /dev/null
+++ b/demo_accessor/apex/manifest.json
@@ -0,0 +1,4 @@
+{
+  "name": "com.android.virt.accessor_demo",
+  "version": 1
+}