platform: Initialize platform/bluetooth

This CL sets up the required files for the new repository,
platform/bluetooth, which is used for Platform Bluetooth team to store
source code that is neither part of the ChromeOS image nor part of the
google3 server.

Note that .gitignore is cloned from platform/camera.

BUG=b:272641274
TEST=None

Change-Id: I09979e8b2d20b71523e819b57c2c7eb12784533e
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/bluetooth/+/4328788
Reviewed-by: Ying Hsu <yinghsu@chromium.org>
Commit-Queue: Ying Hsu <yinghsu@chromium.org>
Auto-Submit: Dean Liao <deanliao@chromium.org>
Tested-by: Dean Liao <deanliao@chromium.org>
diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..933bfb0
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,85 @@
+#
+# NOTE! Please use 'git ls-files -i --exclude-standard'
+# command after changing this file, to see if there are
+# any tracked files which get ignored after the change.
+#
+
+# Temp files (e.g. editors).
+*~
+*.sw[op]
+
+# Compiled objects.
+*.a
+*.o
+*.l[ao]
+*.so
+*.exe
+
+*.d
+!**/tmpfiles.d
+!crosh/dev.d
+*.depends
+.deps
+.libs
+
+*.gch
+*.gcda
+*.gcno
+lcov.info
+
+# Common output files.
+*.dump
+*.out
+*.test
+
+# Protobuf files.
+*.pb.cc
+*.pb.h
+
+# Python files.
+*.pyc
+
+# Debug (e.g. gdb).
+.gdb_history
+.gdbinit
+
+*.core
+cscope.*
+tags
+tags_sorted_by_file
+
+# Patch files.
+*.diff
+*.patch
+*.orig
+*.rej
+
+# Nested git repos.
+/glbench/images/
+
+# Cargo lock file.
+Cargo.lock
+
+# Define rust files.
+*.rs.bk
+
+# Cargo build directories.
+target/
+
+# VSCode source dirs
+.vscode/
+
+# Intellij project dirs
+.idea
+
+# Emacs files
+.dir-locals.el
+.projectile
+TAGS
+
+# clangd cache dir
+.clangd
+.cache
+
+# Created when building with USE=compilation_database
+compile_commands.json
diff --git a/DIR_METADATA b/DIR_METADATA
new file mode 100644
index 0000000..72ffe29
--- /dev/null
+++ b/DIR_METADATA
@@ -0,0 +1,14 @@
+# Metadata information for this directory.
+#
+# For more information on DIR_METADATA files, see:
+#   https://source.chromium.org/chromium/infra/infra/+/HEAD:go/src/infra/tools/dirmd/README.md
+#
+# For the schema of this file, see Metadata message:
+#   https://source.chromium.org/chromium/infra/infra/+/HEAD:go/src/infra/tools/dirmd/proto/dir_metadata.proto
+
+buganizer {
+  # ChromeOS > Platform > Connectivity > Bluetooth
+  component_id: 167317
+}
+
+team_email: "chromeos-bt-team@google.com"
diff --git a/OWNERS b/OWNERS
new file mode 100644
index 0000000..e0e61ee
--- /dev/null
+++ b/OWNERS
@@ -0,0 +1,4 @@
+deanliao@chromium.org
+yinghsu@chromium.org
+michaelfsun@google.com
+mcchou@chromium.org