note on on to be removed datatypes:: namespace resolution

Author: Wumpf

src/collection_adapters.hpp

@@ -58,6 +58,7 @@ struct rerun::CollectionAdapter<uint8_t, cv::Mat> {
 };
 
 // Adapter for extracting tensor dimensions from an OpenCV matrix.
+// TODO(https://github.com/rerun-io/rerun/pull/4331): remove `datatypes::`
 template <>
 struct rerun::CollectionAdapter<rerun::datatypes::TensorDimension, cv::Mat> {
     Collection<rerun::datatypes::TensorDimension> operator()(const cv::Mat& img) {

src/main.cpp

@@ -65,6 +65,7 @@ int main() {
     }
 
     // Log image to Rerun
+    // TODO(https://github.com/rerun-io/rerun/pull/4331): remove `datatypes::`
     cv::cvtColor(img, img, cv::COLOR_BGR2RGB); // Rerun expects RGB format
     rec.log("image", rerun::Image(img, rerun::datatypes::TensorBuffer::u8(img)));