Initialize working on #20 to add Docker support

- Add a Dockerfile which uses an Ubuntu image to install relevant dependencies (exif) and uses a Miniconda image for setting up/reusing the conda environment
- Add a dummy docker-compose file

Dockerfile

@@ -0,0 +1,21 @@
+# syntax=docker/dockerfile:1
+FROM ubuntu:18.04
+
+# Install system dependencies and Python packages
+RUN apt-get update -y && \
+    apt-get -y install libimage-exiftool-perl
+
+FROM continuumio/miniconda3
+
+COPY . /src
+WORKDIR /src
+
+COPY environment.yml .
+COPY config.yml .
+
+RUN conda env create -f environment.yml
+
+EXPOSE 5000
+COPY . .
+# CMD python3 -m main -c=config.yml -vv
+CMD ["conda", "run", "--name", "semantic-search", "python3", "-m", "main", "-c=config.yml", "-vv"]