Add CI workflow

.github/workflows/ci.yaml

@@ -0,0 +1,25 @@
+name: Continous Integration
+
+on:
+  pull_request:
+  workflow_dispatch:
+
+jobs:
+  unit_test:
+    strategy:
+      matrix:
+        os:
+          - ubuntu-latest
+    name: ci - ${{matrix.os}}
+    runs-on: ${{matrix.os}}
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+      - name: Setup Go 
+        uses: actions/setup-go@v4
+        with:
+          go-version: 1.21.x
+      - name: Build
+        run: go build
+      - name: Test
+        run: go test