Introduce libforwarder

Brought code from ChromiumOS under confirmation of opensource licensing
team. Modification of these files to be built would be happened in the
following change.

Bug: 340126051
Test: N/A
Change-Id: Idc9857563eb1c351534b46ec86bfd4c375a9d318
diff --git a/libs/libforwarder/src/lib.rs b/libs/libforwarder/src/lib.rs
new file mode 100644
index 0000000..9c2c7a3
--- /dev/null
+++ b/libs/libforwarder/src/lib.rs
@@ -0,0 +1,19 @@
+// Copyright 2024 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.
+
+// Copied from ChromiumOS with relicensing:
+// src/platform2/vm_tools/chunnel/src/lib.rs
+
+pub mod forwarder;
+pub mod stream;