add Dockerfile based on CI environment

docker/Dockerfile

+# © 2020 ETH Zurich, Mechanics and Materials Lab
+# © 2020 California Institute of Technology
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+ARG BASE_IMAGE=debian:buster
+
+FROM $BASE_IMAGE
+
+RUN apt-get update && apt-get install -y cmake
+RUN apt-get update && apt-get install -y g++
+RUN apt-get update && apt-get install -y googletest
+RUN apt-get update && apt-get install -y libboost-program-options-dev
+RUN apt-get update && apt-get install -y libeigen3-dev
+RUN apt-get update && apt-get install -y ninja-build
+RUN apt-get update && apt-get install -y petsc-dev
+RUN apt-get update && apt-get install -y python3 python3-pip
+
+RUN pip3 install gcovr
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