Extract unfold classes to a separate library

No behaviour changes in this CL.
Extracted classes related to the fold/unfold
animation (that plays on foldable devices) to
a separate library that does not depend on
system classes. This is necessary to ease
reusing these classes in live wallpapers.

Bug: 231936088
Test: fold/unfold device
Change-Id: Ic1e1ec742867fca9c1209b930accd5738de18e39
diff --git a/packages/SystemUI/unfold/Android.bp b/packages/SystemUI/unfold/Android.bp
new file mode 100644
index 0000000..108295b
--- /dev/null
+++ b/packages/SystemUI/unfold/Android.bp
@@ -0,0 +1,39 @@
+// Copyright (C) 2022 The Android Open Source Project
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package {
+    // See: http://go/android-license-faq
+    // A large-scale-change added 'default_applicable_licenses' to import
+    // all of the 'license_kinds' from "frameworks_base_packages_SystemUI_license"
+    // to get the below license kinds:
+    //   SPDX-license-identifier-Apache-2.0
+    default_applicable_licenses: ["frameworks_base_packages_SystemUI_license"],
+}
+
+android_library {
+    name: "SystemUIUnfoldLib",
+    srcs: [
+        "src/**/*.java",
+        "src/**/*.kt",
+        "src/**/*.aidl",
+    ],
+    static_libs: [
+        "androidx.dynamicanimation_dynamicanimation",
+        "dagger2",
+        "jsr330",
+    ],
+    java_version: "1.8",
+    min_sdk_version: "current",
+    plugins: ["dagger2-compiler"],
+}