update docker file

testing/Dockerfile

@@ -7,6 +7,11 @@ RUN apt-get update && apt-get install -y python3.7 \
 RUN apt-get update && apt-get install -y unzip
 RUN apt-get update && apt-get install -y build-essential
 
+RUN apt-get update && apt-get install -y libsodium23 libsodium-dev
+
+RUN pip3 install --upgrade pip && \
+	pip3 install --pre scapy[basic]
+
 WORKDIR /usr/test
 
 COPY bibifiTests.py .