Adding CI/CD pipeline release and tag generator template

.release.yml

+release: "gitlab"
+gitlab:
+  repo: ${CI_PROJECT_PATH}
+  customUrl: "https://gitlab.tools.gebeya.io"
+commitFormat: conventional
+branch:
+  master: release
+  staging: rc
+  
+hooks:
+  preRelease:
+    - base64 -d $GCP_REGISTRY_AUTH_KEY | docker login -u _json_key --password-stdin https://gcr.io
+    - docker login -u "$CI_REGISTRY_USER" -p "$CI_REGISTRY_PASSWORD" $CI_REGISTRY
+    - docker pull $BUILD_IMAGE_NAME_LATEST || true
+    - docker build --cache-from $BUILD_IMAGE_NAME_LATEST --build-arg BUILDKIT_INLINE_CACHE=1 -t ${BUILD_IMAGE_NAME}$RELEASE_VERSION .
+  postRelease:
+    - base64 -d $GCP_REGISTRY_AUTH_KEY | docker login -u _json_key --password-stdin https://gcr.io
+    - docker login -u "$CI_REGISTRY_USER" -p "$CI_REGISTRY_PASSWORD" $CI_REGISTRY
+    - docker tag "${BUILD_IMAGE_NAME}$RELEASE_VERSION" "$BUILD_IMAGE_NAME_LATEST"
+    - docker push "${BUILD_IMAGE_NAME}$RELEASE_VERSION"
+    - docker push "$BUILD_IMAGE_NAME_LATEST"