Pull SecureBox.java out into its own library.

SecureBox is needed by Settings for encrypting device credential and
was inaccessible from services/core/java/com/android/server.
Create a new SecureBox library to resolve.

Test: atest com.android.server.locksettings.recoverablekeystore
SecureBoxTests
Bug: 258505917

Change-Id: I65484edf12b04dfe1642cd0c97bc999d26430395
diff --git a/libs/securebox/tests/Android.bp b/libs/securebox/tests/Android.bp
new file mode 100644
index 0000000..7df546a
--- /dev/null
+++ b/libs/securebox/tests/Android.bp
@@ -0,0 +1,46 @@
+// 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 {
+    default_applicable_licenses: ["frameworks_base_license"],
+}
+
+android_test {
+    name: "SecureBoxTests",
+    srcs: [
+        "**/*.java",
+    ],
+    static_libs: [
+        "securebox",
+        "androidx.test.runner",
+        "androidx.test.rules",
+        "androidx.test.ext.junit",
+        "frameworks-base-testutils",
+        "junit",
+        "mockito-target-extended-minus-junit4",
+        "platform-test-annotations",
+        "testables",
+        "testng",
+        "truth-prebuilt",
+    ],
+    libs: [
+        "android.test.mock",
+        "android.test.base",
+        "android.test.runner",
+    ],
+    jni_libs: [
+        "libdexmakerjvmtiagent",
+        "libstaticjvmtiagent",
+    ],
+}