add support for SPM for sensors package

packages/sensors_plus/sensors_plus/ios/sensors_plus.podspec

@@ -14,12 +14,12 @@ Flutter plugin to access the accelerometer, gyroscope, magnetometer and baromete
   s.author           = { 'Flutter Community Team' => '[email protected]' }
   s.source           = { :http => 'https://github.com/fluttercommunity/plus_plugins/tree/main/packages/sensors_plus' }
   s.documentation_url = 'https://pub.dev/packages/sensors_plus'
-  s.source_files = 'Classes/**/*'
+  s.source_files = 'sensors_plus/Sources/sensors_plus/**/*.swift'
   s.dependency 'Flutter'
   s.platform = :ios, '12.0'
 
   # Flutter.framework does not contain a i386 slice.
   s.pod_target_xcconfig = { 'DEFINES_MODULE' => 'YES', 'EXCLUDED_ARCHS[sdk=iphonesimulator*]' => 'i386' }
   s.swift_version = '5.0'
-  s.resource_bundles = {'sensors_plus_privacy' => ['PrivacyInfo.xcprivacy']}
+  s.resource_bundles = {'sensors_plus_privacy' => ['sensors_plus/Sources/sensors_plus/PrivacyInfo.xcprivacy']}
 end

packages/sensors_plus/sensors_plus/ios/sensors_plus/Package.swift

@@ -0,0 +1,24 @@
+// swift-tools-version: 5.9
+// The swift-tools-version declares the minimum version of Swift required to build this package.
+
+import PackageDescription
+
+let package = Package(
+    name: "sensors_plus",
+    platforms: [
+        .iOS("12.0"),
+    ],
+    products: [
+        .library(name: "sensors-plus", targets: ["sensors_plus"])
+    ],
+    dependencies: [],
+    targets: [
+        .target(
+            name: "sensors_plus",
+            dependencies: [],
+            resources: [
+                .process("PrivacyInfo.xcprivacy"),
+            ]
+        )
+    ]
+)