Fix compile issues on iOS, tvOS and watchOS

Author: flowtoolz

Code/CombineObserver/SwiftObserver+Combine.swift

@@ -1,7 +1,7 @@
 import Combine
 import SwiftObserver
 
-@available(iOS 13.0, macOS 10.15, *)
+@available(iOS 13.0, macOS 10.15, tvOS 13.0, *)
 public extension ObservableCache {
 
     /**
@@ -10,7 +10,7 @@ public extension ObservableCache {
     func publisher() -> PublisherOnObservableCache<Self> { .init(self) }
 }
 
-@available(iOS 13.0, macOS 10.15, *)
+@available(iOS 13.0, macOS 10.15, tvOS 13.0, *)
 public class PublisherOnObservableCache<O: ObservableCache>: Publisher, Observer {
 
     init(_ observable: O) {
@@ -32,7 +32,7 @@ public class PublisherOnObservableCache<O: ObservableCache>: Publisher, Observer
     public typealias Failure = Never
 }
 
-@available(iOS 13.0, macOS 10.15, *)
+@available(iOS 13.0, macOS 10.15, tvOS 13.0, *)
 public extension SwiftObserver.ObservableObject {
 
     /**
@@ -41,7 +41,7 @@ public extension SwiftObserver.ObservableObject {
     func publisher() -> PublisherOnObservable<Self> { .init(self) }
 }
 
-@available(iOS 13.0, macOS 10.15, *)
+@available(iOS 13.0, macOS 10.15, tvOS 13.0, *)
 public class PublisherOnObservable<O: SwiftObserver.ObservableObject>: Publisher, Observer {
 
     init(_ observable: O) {

Package.swift

@@ -20,7 +20,7 @@ let package = Package(
     dependencies: [
         .package(
             url: "https://github.com/flowtoolz/SwiftyToolz.git",
-            exact: "0.1.0"
+            exact: "0.1.1"
         )
     ],
     targets: [

Tests/CombineObserverTests/CombineObserverTests.swift

@@ -3,6 +3,7 @@ import CombineObserver
 import SwiftObserver
 import SwiftyToolz
 
+@available(iOS 13.0, tvOS 13.0, *)
 class CombineObserverTests: XCTestCase
 {
     func testCreatingAndSubscribingToPublisher()