Implement new download requirements script (hitachienergy#805)

* rsync added to the Dockerfile

* add rsync to devcontainer

* files, images and crane moved to separate files

* added yaml

.devcontainer/Dockerfile

@@ -18,7 +18,7 @@ RUN : INSTALL APT REQUIREMENTS \
     jq libc6-dev libcap2-bin libffi-dev lsb-release \
     make musl-dev openssh-client procps \
     psmisc ruby-full sudo tar \
-    unzip vim \
+    unzip vim rsync \
  && apt-get -q autoremove -y \
  && apt-get -q clean -y \
  && rm -rf /var/lib/apt/lists/*

Dockerfile

@@ -15,7 +15,7 @@ COPY . /epicli
 RUN : INSTALL APT REQUIREMENTS \
     && apt-get update \
     && apt-get install --no-install-recommends -y \
-        autossh curl gcc jq libcap2-bin libc6-dev libffi-dev make musl-dev openssh-client procps psmisc ruby-full sudo tar unzip vim \
+        autossh curl gcc jq libcap2-bin libc6-dev libffi-dev make musl-dev openssh-client procps psmisc ruby-full sudo tar unzip vim rsync \
 \
     && : INSTALL HELM BINARY \
     && curl -fsSLO https://get.helm.sh/helm-v${HELM_VERSION}-linux-amd64.tar.gz \