Refactor projectmetadata into separate package.

Replace regular expressions to extract fields from a text proto with
and actual parsed protobuf.

Refactor TestFS into its own package, and implement StatFS.

Test: m droid dist cts alllicensemetadata

Test: repo forall -c 'echo -n "$REPO_PATH  " && $ANDROID_BUILD_TOP/out/host/linux-x86/bin/compliance_checkmetadata . 2>&1' | fgrep -v PASS

Change-Id: Icd17a6a2b6a4e2b6ffded48e964b9c9d6e4d64d6
diff --git a/tools/compliance/testfs/Android.bp b/tools/compliance/testfs/Android.bp
new file mode 100644
index 0000000..6baaf18
--- /dev/null
+++ b/tools/compliance/testfs/Android.bp
@@ -0,0 +1,25 @@
+// 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: ["Android-Apache-2.0"],
+}
+
+bootstrap_go_package {
+    name: "compliance-test-fs-module",
+    srcs: [
+        "testfs.go",
+    ],
+    pkgPath: "android/soong/tools/compliance/testfs",
+}