Add OpenVino Detector (#3768)

* Initial work for adding OpenVino detector.  Not functional

* Load model and submit for inference.

Sucessfully load model and initialize OpenVino engine with either CPU or GPU as device.
Does not parse results for objects.

* Detection working with ssdlite_mobilenetv2 FP16 model

* Add OpenVIno support and model to docker image

* Add documentation for OpenVino detector configuration

* Adds support for ARM32/ARM64 and the Myriad X hardware

-  Use custom-built openvino wheel for all platforms
-  Add libusb build without udev for NCS2 support

* Add documentation around Intel CPU requirements and NCS2 setup

* Print all available output tensors

* Update documentation for config parameters

docker/install_deps.sh

@@ -52,7 +52,9 @@ if [[ "${TARGETARCH}" == "amd64" ]]; then
     # Use debian testing repo only for hwaccel packages
     echo 'deb http://deb.debian.org/debian testing main non-free' >/etc/apt/sources.list.d/debian-testing.list
     apt-get -qq update
+    # intel-opencl-icd specifically for GPU support in OpenVino
     apt-get -qq install --no-install-recommends --no-install-suggests -y \
+        intel-opencl-icd \
         mesa-va-drivers libva-drm2 intel-media-va-driver-non-free i965-va-driver libmfx1 radeontop intel-gpu-tools
     rm -f /etc/apt/sources.list.d/debian-testing.list
 fi