fixing docker

Author: dbickson

Dockerfile

@@ -5,6 +5,8 @@ RUN apt -y install software-properties-common
 RUN add-apt-repository -y ppa:deadsnakes/ppa
 RUN apt update
 RUN apt -y install python3.8
+RUN apt -y install libopencv-dev libgl1 ffmpeg
 RUN apt -y install python3-pip
 RUN python3.8 -m pip install --upgrade pip
 RUN python3.8 -m pip install fastdup
+