Draft: Resolve "npsim gun shoudl have --gun.etaMin and --gun.etaMax"

Closes #79

.containers/docker/Dockerfile

+FROM  eicweb.phy.anl.gov:4567/containers/eic_container/eic:2.8-stable
+
+LABEL maintainer="Whitney Armstrong <warmstrong@anl.gov>" \
+      name="npdet" \
+      group="EIC/NPDet" \
+      march="native" \
+      basedist="ubuntu" \
+      base="eic_container" \
+      version="0.2"
+
+RUN cd /tmp             \
+      && git clone  https://eicweb.phy.anl.gov/EIC/NPDet.git \
+      && mkdir -p NPDet/build && cd NPDet/build \
+      && cmake ../. -DCMAKE_CXX_STANDARD=17 \
+      && make -j30  && make -j4 install \
+      && cd /tmp && rm -rf /tmp/NPDet