move Dockerfile to buildfarm

Dockerfile

-ARG REGISTRY=eur0c.laas.fr:5000
-ARG NAMESPACE=buildfarm
-ARG IMAGE=robotpkg
-ARG TARGET=14.04
-
-FROM ${REGISTRY}/${NAMESPACE}/${IMAGE}:${TARGET}
-
-ARG ROBOTPKG
-ARG ROBOTPKG_DEPS=true
-ARG ADDITIONAL_DEPENDENCIES=""
-ARG CHECKOUT=false
-
-RUN /get_deps.sh robotpkg-${ROBOTPKG} $CHECKOUT