Added CI that scans for Golang Vulnerabilities and code smells

The vulnerability scanning is performed by gosec, which is an open source security checker.
The gosec package can be utilized through github actions and used in a workflow.

.github/workflows/security-check.yml

@@ -0,0 +1,22 @@
+name: Security Scan - Gosec
+
+on:
+  push:
+    branches:
+      - main
+  pull_request:
+    branches:
+      - main
+
+jobs:
+  tests:
+    runs-on: ubuntu-latest
+    env:
+      GO111MODULE: on
+    steps:
+      - name: Checkout Source
+        uses: actions/checkout@v2
+      - name: Run Gosec Security Scanner
+        uses: securego/gosec@master
+        with:
+          args: ./...