Add publish scripts, Gitea Actions workflow, and pre-built binary downloads to README

.gitea/workflows/build.yml

@@ -0,0 +1,45 @@
+name: Build AD Bulk Tool
+
+on:
+  push:
+    branches: [main, feature/**, bugfix/**]
+  pull_request:
+
+jobs:
+  build:
+    strategy:
+      matrix:
+        rid: [win-x64, linux-x64, osx-x64, osx-arm64]
+        include:
+          - rid: win-x64
+            os: ubuntu-latest
+            suffix: .exe
+          - rid: linux-x64
+            os: ubuntu-latest
+            suffix: ''
+          - rid: osx-x64
+            os: macos-latest
+            suffix: ''
+          - rid: osx-arm64
+            os: macos-latest
+            suffix: ''
+
+    runs-on: ${{ matrix.os }}
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Setup .NET
+        uses: actions/setup-dotnet@v4
+        with:
+          dotnet-version: '8.0.x'
+
+      - name: Publish (${{ matrix.rid }})
+        run: dotnet publish ADBulkTool.csproj -c Release -r ${{ matrix.rid }} --self-contained true -p:PublishSingleFile=true -p:IncludeNativeLibrariesForSelfExtract=true -o publish/${{ matrix.rid }}
+
+      - name: Upload artifact
+        uses: actions/upload-artifact@v4
+        with:
+          name: ADBulkTool-${{ matrix.rid }}
+          path: publish/${{ matrix.rid }}/ADBulkTool${{ matrix.suffix }}