Releasing the former Stadia file transfer tools

The tools allow efficient and fast synchronization of large directory
trees from a Windows workstation to a Linux target machine.

cdc_rsync* support efficient copy of files by using content-defined
chunking (CDC) to identify chunks within files that can be reused.

asset_stream_manager + cdc_fuse_fs support efficient streaming of a
local directory to a remote virtual file system based on FUSE. It also
employs CDC to identify and reuse unchanged data chunks.

cdc_rsync_cli/testdata/params/empty_source_files.txt

@@ -0,0 +1,3 @@
+
+
+

cdc_rsync_cli/testdata/params/exclude_files.txt

@@ -0,0 +1,2 @@
+file1
+file2

cdc_rsync_cli/testdata/params/include_files.txt

@@ -0,0 +1 @@
+file3

cdc_rsync_cli/testdata/params/source_files.txt

@@ -0,0 +1,6 @@
+file1
+
+  file2   
+   file3
+
+