[google_maps_flutter_ios] Add Swift Package manager support

Author: jokerttu

packages/google_maps_flutter/google_maps_flutter_ios/ios/Assets/.gitkeep

@@ -14,9 +14,9 @@ Downloaded by pub (not CocoaPods).
   s.author           = { 'Flutter Dev Team' => '[email protected]' }
   s.source           = { :http => 'https://github.com/flutter/packages/tree/main/packages/google_maps_flutter/google_maps_flutter/ios' }
   s.documentation_url = 'https://pub.dev/packages/google_maps_flutter_ios'
-  s.source_files = 'Classes/**/*.{h,m}'
-  s.public_header_files = 'Classes/**/*.h'
-  s.module_map = 'Classes/google_maps_flutter_ios.modulemap'
+  s.source_files = 'google_maps_flutter_ios/Sources/google_maps_flutter_ios/**/*.{h,m}'
+  s.public_header_files = 'google_maps_flutter_ios/Sources/google_maps_flutter_ios/include/**/*.h'
+  s.module_map = 'google_maps_flutter_ios/Sources/google_maps_flutter_ios/include/google_maps_flutter_ios.modulemap'
   s.dependency 'Flutter'
   # Allow any version up to the next breaking change after the latest version that
   # has been confirmed to be compatible via an example in examples/. See discussion
@@ -37,5 +37,5 @@ Downloaded by pub (not CocoaPods).
     'LIBRARY_SEARCH_PATHS' => '$(inherited) $(TOOLCHAIN_DIR)/usr/lib/swift/$(PLATFORM_NAME)/ $(SDKROOT)/usr/lib/swift',
     'LD_RUNPATH_SEARCH_PATHS' => '$(inherited) /usr/lib/swift',
   }
-  s.resource_bundles = {'google_maps_flutter_ios_privacy' => ['Resources/PrivacyInfo.xcprivacy']}
+  s.resource_bundles = {'google_maps_flutter_ios_privacy' => ['google_maps_flutter_ios/Sources/google_maps_flutter_ios/Resources/PrivacyInfo.xcprivacy']}
 end

packages/google_maps_flutter/google_maps_flutter_ios/ios/google_maps_flutter_ios.podspec

@@ -0,0 +1,44 @@
+// swift-tools-version: 5.9
+// The swift-tools-version declares the minimum version of Swift required to build this package.
+
+// Copyright 2013 The Flutter Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+import PackageDescription
+
+let package = Package(
+    name: "google_maps_flutter_ios",
+    platforms: [
+        .iOS(.v15),
+    ],
+    products: [
+        .library(name: "google-maps-flutter-ios", type: .static, targets: ["google_maps_flutter_ios"])
+    ],
+    dependencies: [
+        .package(url: "https://github.com/googlemaps/ios-maps-sdk", .upToNextMajor(from: "9.0.0")),
+        .package(url: "https://github.com/googlemaps/google-maps-ios-utils", .upToNextMajor(from: "6.1.0")),
+    ],
+    targets: [
+        .target(
+          name: "google_maps_flutter_ios",
+          dependencies: [
+            .product(
+              name: "GoogleMapsUtils",
+              package: "google-maps-ios-utils"
+            ),
+            .product(
+              name: "GoogleMaps",
+              package: "ios-maps-sdk"
+            ),
+          ],
+          exclude: ["include/google_maps_flutter_ios-umbrella.h", "include/google_maps_flutter_ios.modulemap"],
+          resources: [
+            .process("Resources")
+          ],
+          cSettings: [
+            .headerSearchPath("include/google_maps_flutter_ios")
+          ]
+        )
+    ]
+)