Import protobuf-codegen-2.14.0

* Add OWNERS, Android.bp, and README.android.
* Hard code version number in src/lib.rs for now.
  It could be in a smarter update_package.sh to get the
  new version number from Cargo.tom. But until then,
  the difference in lib.rs will be caught and fixed manually.
* Rename protoc_gen_rust to protoc-gen-rust for aprotoc plugin.

Bug: 143953733
Test: make
Change-Id: I9b3c3b9f2e7ad0eb203c26534f2b6ba5fac46eef
diff --git a/src/inside.rs b/src/inside.rs
new file mode 100644
index 0000000..2590e9e
--- /dev/null
+++ b/src/inside.rs
@@ -0,0 +1,11 @@
+use Customize;
+
+/// Path to `protobuf` crate, different when `.proto` file is
+/// used inside or outside of protobuf crate.
+pub(crate) fn protobuf_crate_path(customize: &Customize) -> &str {
+    match customize.inside_protobuf {
+        // Can't use `crate::` paths before Rust 1.32.0
+        //Some(true) => "crate",
+        _ => "::protobuf",
+    }
+}