Re-factor repository workflow

Addresses #13 (closed)

ci/build_and_deploy.yml.in

+image: eicweb.phy.anl.gov:4567/containers/image_recipes/ubuntu_dind:latest
+
+stages:
+  - build
+  - config
+  - package
+  - singularity
+
+## variables:
+##   - TARGET_XXX: docker build target (including cache modifier) 
+##     (stable, stable-cached, unstable, unstable-cached)
+##   - TAG: main docker tag to be used internally 
+##     (e.g. 2.5-stable/unstable/<version>)
+##   - PUBLISH: docker publish directives
+variables:
+  TARGET_BUILDER: @TARGET_BUILDER@
+  TARGET_RELEASE: @TARGET_RELEASE@
+  TAG: @TAG@
+  PUBLISH: "@PUBLISH@"
+
+default:
+  tags:
+    - silicon
+
+test:
+  stage: build
+  script:
+    - echo FOO BAR
+
+builder:
+  stage: build
+  script:
+    - cp -r spack containers/builder/np-spack
+    - cd containers/builder
+    - head Dockerfile
+    - make login
+    - echo "Creating builder image for $TARGET_BUILDER"
+    - make $TARGET_BUILDER
+    - echo "Publishing image $PUBLISH"
+    - make $PUBLISH
+
+config:
+  image: eicweb.phy.anl.gov:4567/containers/eic_container/eic_builder:$TAG
+  stage: config
+  needs: ["builder"]
+  script:
+    - bash containers/release/configure_release.sh $TAG
+  artifacts:
+    paths:
+      - config
+      
+release:docker:
+  stage: package
+  needs: ["config"]
+  script:
+    - cp config/Dockerfile containers/release/Dockerfile
+    - cp config/eic-env.sh containers/release/eic-env.sh
+    - cd containers/release
+    - make login
+    - echo "Creating release image for $TARGET_RELEASE"
+    - make $TARGET_RELEASE
+    - echo "Publishing image $PUBLISH"
+    - make $PUBLISH
+
+release:singularity:
+  stage: singularity
+  needs: ["release:docker"]
+  rules:
+    - if: '$CI_COMMIT_BRANCH == "master"'
+      when: on_success
+    - if: '$CI_COMMIT_BRANCH == "v$TAG"'
+      when: on_success
+    - if: '$CI_COMMIT_TAG == "v$TAG"'
+      when: on_success
+  script:
+     - cp config/eic.def eic.def
+     - /bin/bash .gitlabci/setup.sh
+     - /bin/bash .gitlabci/build.sh eic.def
+     - mkdir -p build 
+     - cp eic.sif build/.
+     - cp eic.def build/.
+  artifacts:
+      expire_in: 90 days
+      paths:
+        - build/eic.sif
+        - build/eic.def