added SPM support

Detect/RxVNDetectBarcodesRequest.swift

@@ -9,6 +9,7 @@
 import Vision
 import RxSwift
 
+@available(iOS 11.0, *)
 public final class RxVNDetectBarcodesRequest<T>: RxVNRequest<T> {
 
     public init(symbologies: [VNBarcodeSymbology]) {

Detect/RxVNDetectFaceLandmarksRequest.swift

@@ -9,6 +9,7 @@
 import Vision
 import RxSwift
 
+@available(iOS 11.0, *)
 public final class RxVNDetectFaceLandmarksRequest<T>: RxVNRequest<T> {
 
     public init() {

Detect/RxVNDetectRectanglesRequest.swift

@@ -9,6 +9,7 @@
 import Vision
 import RxSwift
 
+@available(iOS 11.0, *)
 public final class RxVNDetectRectanglesRequest<T>: RxVNRequest<T> {
 
     public init() {

Detect/RxVNDetectTextRectanglesRequest.swift

@@ -9,6 +9,7 @@
 import Vision
 import RxSwift
 
+@available(iOS 11.0, *)
 public final class RxVNDetectTextRectanglesRequest<T>: RxVNRequest<T> {
 
     public init(reportCharacterBoxes: Bool) {

Detect/VNDetectBarcodesRequest+Rx.swift

@@ -9,6 +9,7 @@
 import Vision
 import RxSwift
 
+@available(iOS 11.0, *)
 extension Reactive where Base: VNDetectBarcodesRequest {
 
     public static func request<T>(symbologies: [VNBarcodeSymbology]) -> RxVNDetectBarcodesRequest<T> {

Detect/VNDetectFaceLandmarksRequest+Rx.swift

@@ -9,6 +9,7 @@
 import Vision
 import RxSwift
 
+@available(iOS 11.0, *)
 extension Reactive where Base: VNDetectFaceLandmarksRequest {
 
     public static func request<T>() -> RxVNDetectFaceLandmarksRequest<T> {

Detect/VNDetectRectanglesRequest+Rx.swift

@@ -9,6 +9,7 @@
 import Vision
 import RxSwift
 
+@available(iOS 11.0, *)
 extension Reactive where Base: VNDetectRectanglesRequest {
 
     public static func request<T>() -> RxVNDetectRectanglesRequest<T> {

Detect/VNDetectTextRectanglesRequest+Rx.swift

@@ -9,6 +9,7 @@
 import Vision
 import RxSwift
 
+@available(iOS 11.0, *)
 extension Reactive where Base: VNDetectTextRectanglesRequest {
 
     public static func request<T>(reportCharacterBoxes: Bool) -> RxVNDetectTextRectanglesRequest<T> {

Package.swift

@@ -0,0 +1,30 @@
+// swift-tools-version:5.1
+
+import PackageDescription
+
+let package = Package(
+    name: "RxVision",
+    platforms: [
+        .macOS(.v10_10), .iOS(.v8), // .tvOS(.v9), .watchOS(.v3)
+    ],
+    products: [
+        .library(
+            name: "RxVision",
+            targets: ["RxVision"]),
+    ],
+    dependencies: [
+        .package(url: "https://github.com/ReactiveX/RxSwift.git", from: "5.0.0")
+    ],
+    targets: [
+        .target(
+            name: "RxVision",
+            dependencies: ["RxSwift"], // "RxRelay"],
+            path: "." // Sources
+        ),
+//        .testTarget(
+//            name: "RxVisionTests",
+//            dependencies: ["RxVision"],
+//            path: "Tests"
+//        )
+    ]
+)

Track/RxVNTrackObjectRequest.swift

@@ -9,6 +9,7 @@
 import Vision
 import RxSwift
 
+@available(iOS 11.0, *)
 public final class RxVNTrackObjectRequest<T>: RxVNRequest<T> {
 
     public init(detectedObjectObservation observation: VNDetectedObjectObservation) {

Track/RxVNTrackRectangleRequest.swift

@@ -9,6 +9,7 @@
 import Vision
 import RxSwift
 
+@available(iOS 11.0, *)
 public final class RxVNTrackRectangleRequest<T>: RxVNRequest<T> {
 
     public init(rectangleObservation observation: VNRectangleObservation) {

Track/VNTrackObjectRequest+Rx.swift

@@ -9,6 +9,7 @@
 import Vision
 import RxSwift
 
+@available(iOS 11.0, *)
 extension Reactive where Base: VNTrackObjectRequest {
 
     public static func request<T>(detectedObjectObservation observation: VNDetectedObjectObservation) -> RxVNTrackObjectRequest<T> {

Track/VNTrackRectangleRequest+Rx.swift

@@ -9,6 +9,7 @@
 import Vision
 import RxSwift
 
+@available(iOS 11.0, *)
 extension Reactive where Base: VNTrackRectangleRequest {
 
     public static func request<T>(rectangleObservation observation: VNRectangleObservation) -> RxVNTrackRectangleRequest<T> {

Vision/RequestCompletion.swift

@@ -8,7 +8,9 @@
 
 import Vision
 
+@available(iOS 11.0, *)
 typealias _RequestCompletion = (request: VNRequest, error: Error?)
 
+@available(iOS 11.0, *)
 public typealias RequestCompletion<T> = (value: T?, request: VNRequest, error: Error?)
 

Vision/RxVNCoreMLRequest.swift

@@ -9,6 +9,7 @@
 import Vision
 import RxSwift
 
+@available(iOS 11.0, *)
 public final class RxVNCoreMLRequest<T>: RxVNRequest<T> {
 
     public init(model: VNCoreMLModel, imageCropAndScaleOption: VNImageCropAndScaleOption) {

Vision/RxVNRequest.swift

@@ -9,6 +9,7 @@
 import Vision
 import RxSwift
 
+@available(iOS 11.0, *)
 public class RxVNRequest<T> {
 
     private let valueSubject: PublishSubject<T> = PublishSubject<T>()

Vision/RxVNRequestCompletionHandler.swift

@@ -9,6 +9,7 @@
 import Vision
 import RxSwift
 
+@available(iOS 11.0, *)
 final class RxVNRequestCompletionHandler {
 
     typealias Observer = AnyObserver<_RequestCompletion>

Vision/VNCoreMLRequest+Rx.swift

@@ -9,6 +9,7 @@
 import Vision
 import RxSwift
 
+@available(iOS 11.0, *)
 extension Reactive where Base: VNCoreMLRequest {
 
     public static func request<T>(model: VNCoreMLModel, imageCropAndScaleOption: VNImageCropAndScaleOption) -> RxVNCoreMLRequest<T> {

Vision/VNImageRequestHandler+Rx.swift

@@ -9,6 +9,7 @@
 import Vision
 import RxSwift
 
+@available(iOS 11.0, *)
 extension Reactive where Base: VNImageRequestHandler {
 
     public func perform<T>(_ requests: [RxVNRequest<T>], on value: T) throws {

Vision/VNSequenceRequestHandler+Rx.swift

@@ -8,7 +8,9 @@
 
 import Vision
 import RxSwift
+import CoreImage
 
+@available(iOS 11.0, *)
 extension Reactive where Base: VNSequenceRequestHandler {
 
     // MARK: - CGImage