Use GitHub Actions for testing

.github/workflows/ci.yml

@@ -0,0 +1,20 @@
+name: NameIT CI
+
+on:
+  push:
+  pull_request:    
+  workflow_dispatch:
+
+jobs:
+  build:
+    runs-on: ${{ matrix.os }}
+    strategy:
+      matrix:
+        os: [windows-latest, ubuntu-18.04, macos-latest]
+
+    steps:
+      - uses: actions/checkout@v2
+
+      - name: Run the scripts
+        shell: pwsh
+        run: ./ContinuousIntegration.ps1          

ContinuousIntegration.ps1

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+$PSVersionTable
+
+$modules = @("Pester", "PSScriptAnalyzer")
+
+foreach ($module in $modules) {
+    Write-Host "Installing $module" -ForegroundColor Cyan
+    Install-Module $module -Force -SkipPublisherCheck
+    Import-Module $module -Force -PassThru
+}
+
+$pesterResults = Invoke-Pester -Output Detailed -PassThru
+
+if (!$pesterResults) {
+    Throw "Tests failed"
+}
+else { 
+    if ($pesterResults.FailedCount -gt 0) {
+
+        '[Progress] Pester Results Failed'
+        $pesterResults.Failed | Out-String
+
+        '[Progress] Pester Results FailedBlocks'
+        $pesterResults.FailedBlocks | Out-String
+
+        '[Progress] Pester Results FailedContainers'
+        $pesterResults.FailedContainers | Out-String
+
+        Throw "Tests failed"
+    }
+}