Create initial shell package

- It does nothing

Bug: 146497807
Test: atest WindowManagerShellTests
Test: SystemUI builds
Change-Id: Ieda77ffdc6a6bed88e55e195a2d9f147e5d4d458
diff --git a/packages/SystemUI/Android.bp b/packages/SystemUI/Android.bp
index 4fb3be2..c238d7d 100644
--- a/packages/SystemUI/Android.bp
+++ b/packages/SystemUI/Android.bp
@@ -42,6 +42,7 @@
         "res",
     ],
     static_libs: [
+        "WindowManager-Shell",
         "SystemUIPluginLib",
         "SystemUISharedLib",
         "SettingsLib",