Update Dockerfile

Include lapack in the container image

Dockerfile

@@ -4,5 +4,5 @@ LABEL NAME="sassena-ci" \
         DESCRIPTION="Sassena Continuous Integration Image"
 RUN apt-get update -y
 RUN apt-get install -y build-essential cmake zlib1g-dev libblas-dev libfftw3-dev libxml2-dev libhdf5-dev
-RUN apt-get install -y libboost-all-dev mpi-default-dev
+RUN apt-get install -y libboost-all-dev mpi-default-dev liblapack-dev
 RUN apt-get install -y ninja-build doxygen sphinx-doc