Add BigWigs packager config to bundle both addons in one zip

Add .pkgmeta (package-as MikScrollingBattleText, move-folders pulling both addon folders to top-level siblings) and a tag-triggered GitHub Actions workflow using BigWigsMods/packager that attaches the single zip to an auto-created GitHub release. Switch both TOCs' Version to the @project-version@ substitution token so the packager stamps the git tag version.

.github/workflows/release.yml

@@ -0,0 +1,23 @@
+name: Package and release
+
+on:
+  push:
+    tags:
+      - '**'
+
+permissions:
+  contents: write
+
+jobs:
+  package:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
+
+      - name: Package and create GitHub release
+        uses: BigWigsMods/packager@v2
+        env:
+          GITHUB_OAUTH: ${{ secrets.GITHUB_TOKEN }}