CI/CD => Add a pipeline for make a test build

.gitlab-ci.yml

+variables:
+    GIT_SUBMODULE_STRATEGY: recursive
+    GIT_SUBMODULE_FORCE_HTTPS: "true"
+    SECURE_FILES_DOWNLOAD_PATH: './'
+
+stages:
+    - test
+
+build:test:
+    image: node:latest
+    stage: test
+    tags:
+        - build
+    script:
+        - cd ExpressAPI
+        - npm install
+        - npm run build
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