Update to the latest Xcode 11-beta5 syntax of SwiftUI

Author: dreampiggy

SDWebImageSwiftUI/Classes/AnimatedImage.swift

@@ -16,7 +16,7 @@ public struct AnimatedImage: ViewRepresentable {
     var name: String?
     var bundle: Bundle?
     var data: Data?
-    var scale: Length = 0
+    var scale: CGFloat = 0
 
     #if os(macOS)
     public typealias NSViewType = SDAnimatedImageView
@@ -74,7 +74,7 @@ public struct AnimatedImage: ViewRepresentable {
         self.bundle = bundle
     }
 
-    public init(data: Data, scale: Length = 0) {
+    public init(data: Data, scale: CGFloat = 0) {
         self.data = data
         self.scale = scale
     }

SDWebImageSwiftUI/Classes/ImageManager.swift

@@ -10,7 +10,7 @@ import SwiftUI
 import Combine
 import SDWebImage
 
-class ImageManager : BindableObject {
+class ImageManager : ObservableObject {
     var willChange = PassthroughSubject<ImageManager, Never>()
     var didChange = PassthroughSubject<ImageManager, Never>()
 

SDWebImageSwiftUI/Classes/WebImage.swift

@@ -15,7 +15,7 @@ public struct WebImage : View {
     public var options: SDWebImageOptions
     public var context: [SDWebImageContextOption : Any]?
 
-    @ObjectBinding var imageManager: ImageManager
+    @ObservedObject var imageManager: ImageManager
 
     public init(url: URL, placeholder: Image? = nil, options: SDWebImageOptions = [], context: [SDWebImageContextOption : Any]? = nil) {
         self.url = url