Fix macOS linker flag and link OpenCV in CMakeLists,txt#523

Samahu merged 1 commit intoouster-lidar:restore-whole-archive-and-update-use-modern-way-to-add-definitionsouster-lidar/ouster-ros:restore-whole-archive-and-update-use-modern-way-to-add-definitionsfrom

alexc-ouster:restore-whole-archive-and-update-use-modern-way-to-add-definitionsalexc-ouster/ouster-ros:restore-whole-archive-and-update-use-modern-way-to-add-definitionsCopy head branch name to clipboard