Vendor dependencies for 0.3.0 release

vendor/oboe/src/private.rs

@@ -0,0 +1,17 @@
+use oboe_sys as ffi;
+
+pub trait RawAudioStreamBase {
+    fn _raw_base(&self) -> &ffi::oboe_AudioStreamBase;
+    fn _raw_base_mut(&mut self) -> &mut ffi::oboe_AudioStreamBase;
+}
+
+pub trait RawAudioStream {
+    fn _raw_stream(&self) -> &ffi::oboe_AudioStream;
+    fn _raw_stream_mut(&mut self) -> &mut ffi::oboe_AudioStream;
+}
+
+/// The raw marker for input stream
+pub trait RawAudioInputStream {}
+
+/// The raw marker for output stream
+pub trait RawAudioOutputStream {}