Added the packaging script

package.sh

@@ -0,0 +1,67 @@
+#!/bin/bash
+
+APP_NAME=$(git remote -v | tail -1 | sed 's|.*/\([^/]*\)\.git.*|\1|')
+VERSION="$1"
+RELEASE_DIR_RELATIVE="bin/Release"
+PUBLISH_DIR_RELATIVE="${RELEASE_DIR_RELATIVE}/publish-script-output"
+RELEASE_DIR="$(pwd)/$RELEASE_DIR_RELATIVE"
+PUBLISH_DIR="$(pwd)/$PUBLISH_DIR_RELATIVE"
+
+if [ -z "$VERSION" ]; then
+    echo "ERROR: Please specify a version"
+    exit 1
+fi
+
+function package {
+    ARCH="$1"
+
+    OUTPUT_DIR="$PUBLISH_DIR/$ARCH"
+    OUTPUT_FILE="$RELEASE_DIR/${APP_NAME}_${VERSION}_${ARCH}.zip"
+
+    echo "Packaging \"$OUTPUT_DIR\" to \"$OUTPUT_FILE\""
+
+    if [ -f "$OUTPUT_FILE" ]; then
+        rm "$OUTPUT_FILE"
+    fi
+
+    cd "$OUTPUT_DIR"
+    zip -q -9 -r "$OUTPUT_FILE" .
+    cd -
+}
+
+function dotnet-pub {
+    ARCH="$1"
+    OUTPUT_DIR="$PUBLISH_DIR_RELATIVE/$ARCH"
+
+    dotnet publish -c Release -r "$ARCH" -o "$OUTPUT_DIR" --self-contained=true /p:TrimUnusedDependencies=true /p:LinkDuringPublish=true
+}
+
+function prepare {
+    echo "Adding the temporary NuGet packages"
+    dotnet add package Microsoft.Packaging.Tools.Trimming --version 1.1.0-preview1-26619-01
+    #dotnet add package ILLink.Tasks --version 0.1.5-preview-1841731 --source https://dotnet.myget.org/F/dotnet-core/api/v3/index.json
+}
+
+function cleanup {
+    echo "Removing the temporary NuGet packages"
+    dotnet remove package Microsoft.Packaging.Tools.Trimming
+    #dotnet remove package ILLink.Task
+
+    echo "Cleaning build output"
+    rm -rf "$PUBLISH_DIR"
+}
+
+function build-release {
+    dotnet-pub $1
+    package $1
+}
+
+prepare
+
+build-release linux-arm
+build-release linux-arm64
+build-release linux-x64
+build-release osx-x64
+build-release win-x64
+
+cleanup