👷 add ci build and build jobs

.circleci/config.yml

@@ -0,0 +1,21 @@
+version: 2.1
+jobs:
+  build:
+    docker:
+      - image: circleci/node:dubnium-browsers
+    steps:
+      - checkout
+      - restore_cache:
+          keys:
+            - yarn-packages-{{ checksum "yarn.lock" }}-{{ .Environment.CACHE_VERSION }}
+            - yarn-packages
+      - run: yarn global add node-gyp && yarn install
+      - save_cache:
+          key: yarn-packages-{{ checksum "yarn.lock" }}-{{ .Environment.CACHE_VERSION }}
+          paths:
+            - node_modules
+ 
+workflows:
+  build_and_test:
+    jobs:
+      - build