Add workflow to validate GEDCOM test files

Fixes #214

Signed-off-by: Dave Thaler <[email protected]>

.github/workflows/validate-gedcom.yml

@@ -0,0 +1,41 @@
+# For documentation on the github environment, see
+# https://docs.github.com/en/actions/using-github-hosted-runners/about-github-hosted-runners
+#
+# For documentation on the syntax of this file, see
+# https://docs.github.com/en/actions/reference/workflow-syntax-for-github-actions
+---
+name: Validate-GEDCOM
+
+on:
+  push:
+    branches: [main, next-minor, next-patch]
+  pull_request:
+    branches: [main, next-minor, next-patch]
+
+permissions:
+  contents: read
+
+jobs:
+  validate-gedcom:
+    runs-on: windows-latest
+    env:
+      BUILD_PLATFORM: x64
+
+    steps:
+      - name: Checkout GEDCOM.io
+        uses: actions/checkout@v4
+
+      - name: Download GedValidate
+        shell: pwsh
+        run: Invoke-WebRequest https://github.com/ArmidaleSoftware/gedcom7/releases/download/v1.0.0/Windows.Release.GedValidate.zip -OutFile GedValidate.zip
+
+      - name: Unzip GedValidate
+        shell: pwsh
+        run: Expand-Archive GedValidate.zip -DestinationPath .\${{env.BUILD_PLATFORM}}
+
+      - name: Run GedValidate
+        shell: pwsh
+        run: |
+          dir .\${{env.BUILD_PLATFORM}}
+          dir ${{github.workspace}}
+          .\${{env.BUILD_PLATFORM}}\GedValidate.exe ${{github.workspace}}\testfiles\gedcom70\maximal70.ged