Add Dockerfile

Dockerfile

+FROM python:3.9
+
+LABEL maintainer="marius.kriegerowski@gfz-potsdam.de"
+
+WORKDIR /usr/src/loss-calculator
+
+RUN apt-get clean && apt-get -y update && apt-get install -y libgdal-dev
+
+# Install dependencies first to improve layer cacheing
+COPY setup.py .
+RUN pip3 install --no-cache-dir .
+
+COPY . .
+RUN pip3 install --no-cache-dir .