apacheGH-36546: [Swift] The initial implementation for swift arrow fl…

…ight (apache#36547)

The initial implementation for swift arrow flight.  

This change depends on PR apacheGH-36544.
* Closes: apache#36546

Authored-by: Alva Bandy <abandy@live.com>
Signed-off-by: Sutou Kouhei <kou@clear-code.com>

ci/scripts/swift_test.sh

@@ -30,3 +30,8 @@ source_dir=${1}/swift/Arrow
 pushd ${source_dir}
 swift test
 popd
+
+source_dir=${1}/swift/ArrowFlight
+pushd ${source_dir}
+swift test
+popd

swift/ArrowFlight/.gitignore

@@ -0,0 +1,9 @@
+.DS_Store
+/.build
+/Packages
+/*.xcodeproj
+xcuserdata/
+DerivedData/
+.swiftpm/
+.netrc
+Package.resolved

swift/ArrowFlight/Package.swift

@@ -0,0 +1,53 @@
+// swift-tools-version:5.7
+// The swift-tools-version declares the minimum version of Swift required to build this package.
+
+// Licensed to the Apache Software Foundation (ASF) under one
+// or more contributor license agreements.  See the NOTICE file
+// distributed with this work for additional information
+// regarding copyright ownership.  The ASF licenses this file
+// to you under the Apache License, Version 2.0 (the
+// "License"); you may not use this file except in compliance
+// with the License.  You may obtain a copy of the License at
+//
+//   http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing,
+// software distributed under the License is distributed on an
+// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+// KIND, either express or implied.  See the License for the
+// specific language governing permissions and limitations
+// under the License.
+
+import PackageDescription
+
+let package = Package(
+    name: "ArrowFlight",
+    platforms: [
+        .macOS(.v10_15)
+    ],
+    products: [
+        // Products define the executables and libraries a package produces, making them visible to other packages.
+        .library(
+            name: "ArrowFlight",
+            targets: ["ArrowFlight"]),
+    ],
+    dependencies: [
+        .package(url: "https://github.com/grpc/grpc-swift.git", from: "1.15.0"),
+        .package(url: "https://github.com/apple/swift-protobuf.git", from: "1.6.0"),
+        .package(path: "../Arrow")
+    ],
+    targets: [
+        // Targets are the basic building blocks of a package, defining a module or a test suite.
+        // Targets can depend on other targets in this package and products from dependencies.
+        .target(
+            name: "ArrowFlight",
+            dependencies: [
+                .product(name: "Arrow", package: "Arrow"),
+                .product(name: "GRPC", package: "grpc-swift"),
+                .product(name: "SwiftProtobuf", package: "swift-protobuf")
+            ]),
+        .testTarget(
+            name: "ArrowFlightTests",
+            dependencies: ["ArrowFlight"]),
+    ]
+)