Add CI/CD

.github/workflows/audit.yml

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+name: Audit
+
+on:
+  push:
+    branches: [main, robadams-fix-ci]
+  pull_request:
+    branches: [main]
+
+jobs:
+  audit:
+    runs-on: ubuntu-20.04
+    steps:
+    - uses: actions/checkout@v3
+
+    - name: Set up Go
+      uses: actions/setup-go@v2
+      with:
+        go-version: 1.20.5
+
+    - name: Verify dependencies
+      run: go verify ./...
+
+    - name: Run gofmt
+      run:  test -z $$(gofmt -l .)
+
+    - name: Build
+      run: go build ./...
+
+    - name: Run go vet
+      run: go vet ./...
+
+    - name: Detect ineffectual assignments
+      run:  go run github.com/gordonklaus/ineffassign@latest ./...
+
+    - name: Run staticcheck
+      run:  go run honnef.co/go/tools/cmd/staticcheck@latest -checks=all,-ST1000,-U1000 ./...
+
+    - name: Run vulncheck
+      run:  go run golang.org/x/vuln/cmd/govulncheck@latest ./...
+
+    - name: Run golint
+      run:  go run github.com/mgechev/revive@latest -set_exit_status ./...
+
+    - name: Run tests
+      run:  go test -race -buildvcs -vet=off ./...

.github/workflows/cover-badge.yml

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+name: Generate code coverage badge
+
+on:
+  push:
+    branches:
+      - main
+      - robadams-fix-ci
+  pull_request:
+    branches:
+      - main
+      - robadams-fix-ci
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+    name: Update coverage badge
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v3
+        with:
+          persist-credentials: false # otherwise, the token used is the GITHUB_TOKEN, instead of your personal access token.
+          fetch-depth: 0 # otherwise, there would be errors pushing refs to the destination repository.
+
+      - name: Setup go
+        uses: actions/setup-go@v4
+        with:
+          go-version: '1.20.5'
+
+      - uses: actions/cache@v2
+        with:
+          path: ~/go/pkg/mod
+          key: ${{ runner.os }}-go-${{ hashFiles('**/go.sum') }}
+          restore-keys: |
+            ${{ runner.os }}-go-
+
+      - name: Run Test
+        run: |
+          go test -v ./... -covermode=count -coverprofile=coverage.out
+          go tool cover -func=coverage.out -o=coverage.out
+
+      - name: Go Coverage Badge  # Pass the `coverage.out` output to this action
+        uses: tj-actions/coverage-badge-go@v2
+        with:
+          filename: coverage.out
+
+      - name: Verify Changed files
+        uses: tj-actions/verify-changed-files@v12
+        id: verify-changed-files
+        with:
+          files: README.md
+
+      - name: Commit changes
+        if: steps.verify-changed-files.outputs.files_changed == 'true'
+        run: |
+          git config --local user.email "[email protected]"
+          git config --local user.name "GitHub Action"
+          git add README.md
+          git commit -m "chore: Updated coverage badge."
+
+      - name: Push changes
+        if: steps.verify-changed-files.outputs.files_changed == 'true'
+        uses: ad-m/github-push-action@master
+        with:
+          github_token: ${{ github.token }}
+          branch: ${{ github.head_ref }}

.github/workflows/golangci-lint.yml

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+name: golangci-lint
+on:
+  push:
+    branches:
+      - master
+      - main
+      - robadams-fix-ci
+  pull_request:
+
+permissions:
+  contents: read
+  # Optional: allow read access to pull request. Use with `only-new-issues` option.
+  # pull-requests: read
+
+jobs:
+  golangci:
+    name: lint
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+      - uses: actions/setup-go@v4
+        with:
+          go-version: '1.20'
+          cache: false
+      - name: golangci-lint
+        uses: golangci/golangci-lint-action@v3
+        with:
+          # Require: The version of golangci-lint to use.
+          # When `install-mode` is `binary` (default) the value can be v1.2 or v1.2.3 or `latest` to use the latest version.
+          # When `install-mode` is `goinstall` the value can be v1.2.3, `latest`, or the hash of a commit.
+          version: v1.53
+
+          # Optional: working directory, useful for monorepos
+          # working-directory: somedir
+
+          # Optional: golangci-lint command line arguments.
+          #
+          # Note: By default, the `.golangci.yml` file should be at the root of the repository.
+          # The location of the configuration file can be changed by using `--config=`
+          # args: --timeout=30m --config=/my/path/.golangci.yml --issues-exit-code=0 
+          args: -E misspell -E revive --exclude-use-default=0
+
+          # Optional: show only new issues if it's a pull request. The default value is `false`.
+          # only-new-issues: true
+
+          # Optional: if set to true, then all caching functionality will be completely disabled,
+          #           takes precedence over all other caching options.
+          # skip-cache: true
+
+          # Optional: if set to true, then the action won't cache or restore ~/go/pkg.
+          # skip-pkg-cache: true
+
+          # Optional: if set to true, then the action won't cache or restore ~/.cache/go-build.
+          # skip-build-cache: true
+
+          # Optional: The mode to install golangci-lint. It can be 'binary' or 'goinstall'.
+          # install-mode: "goinstall"