Added CI tests

.github/workflows/test.yml

@@ -0,0 +1,15 @@
+on: push
+
+name: Test
+
+jobs:
+  build_lin:
+    name: Ubuntu test
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@master
+      - name: Test
+        run: |
+          npm install
+          node_modules/cryptoforknote-util/tests/run.sh