Create powershell-analysis.yml (#146)

Add PowerShellScriptAnalyzer to pull requests.

.github/workflows/powershell-analysis.yml

@@ -0,0 +1,42 @@
+# This workflow uses actions that are not certified by GitHub.
+# They are provided by a third-party and are governed by
+# separate terms of service, privacy policy, and support
+# documentation.
+#
+# https://github.com/microsoft/action-psscriptanalyzer
+# For more information on PSScriptAnalyzer in general, see
+# https://github.com/PowerShell/PSScriptAnalyzer
+
+name: PSScriptAnalyzer
+
+on:
+  push:
+    branches: [ master ]
+  pull_request:
+    branches: [ master ]
+  schedule:
+    - cron: '0 3,15 * * *'
+    
+jobs:
+  build:
+    name: PSScriptAnalyzer
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+
+      - name: Run PSScriptAnalyzer
+        uses: microsoft/psscriptanalyzer-action@2044ae068e37d0161fa2127de04c19633882f061
+        with:
+          # Check https://github.com/microsoft/action-psscriptanalyzer for more info about the options.
+          # The below set up runs PSScriptAnalyzer to your entire repository and runs some basic security rules.
+          path: .\
+          recurse: true 
+          # Include your own basic security rules. Removing this option will run all the rules 
+          includeRule: '"PSAvoidGlobalAliases", "PSAvoidUsingConvertToSecureStringWithPlainText"'
+          output: results.sarif
+      
+      # Upload the SARIF file generated in the previous step
+      - name: Upload SARIF results file
+        uses: github/codeql-action/upload-sarif@v1
+        with:
+          sarif_file: results.sarif