[in_app_purchase] Update to pub version of in_app_purchase_platform_interface dependency (#3879)

* Update to pub version of platform interface

* Add missing dependencies

* Renamed podspec file to match new package name

Author: mvanbeusekom

packages/in_app_purchase/in_app_purchase_android/pubspec.yaml

@@ -3,9 +3,6 @@ description: An implementation for the Android platform of the Flutter `in_app_p
 repository: https://github.com/flutter/plugins/tree/master/packages/in_app_purchase/in_app_purchase_android
 version: 0.1.0
 
-# TODO(mvanbeusekom): Remove when in_app_purchase_platform_interface is published
-publish_to: 'none'
-
 flutter:
   plugin:
     platforms:
@@ -14,13 +11,13 @@ flutter:
         pluginClass: InAppPurchasePlugin
 
 dependencies:
-  # TODO(mvanbeusekom): Replace with pub.dev version when in_app_purchase_platform_interface is published
-  in_app_purchase_platform_interface:
-    path: ../in_app_purchase_platform_interface
+  in_app_purchase_platform_interface: ^1.0.0
 
   flutter:
     sdk: flutter
 
+  json_annotation: ^4.0.1
+  collection: ^1.15.0
   meta: ^1.3.0
   test: ^1.16.0
 

packages/in_app_purchase/in_app_purchase_ios/ios/in_app_purchase.podspec renamed to packages/in_app_purchase/in_app_purchase_ios/ios/in_app_purchase_ios.podspec

@@ -2,9 +2,9 @@
 # To learn more about a Podspec see http://guides.cocoapods.org/syntax/podspec.html
 #
 Pod::Spec.new do |s|
-  s.name             = 'in_app_purchase'
+  s.name             = 'in_app_purchase_ios'
   s.version          = '0.0.1'
-  s.summary          = 'Flutter In App Purchase'
+  s.summary          = 'Flutter In App Purchase iOS'
   s.description      = <<-DESC
 A Flutter plugin for in-app purchases. Exposes APIs for making in-app purchases through the App Store.
 Downloaded by pub (not CocoaPods).

packages/in_app_purchase/in_app_purchase_ios/pubspec.yaml

@@ -3,23 +3,20 @@ description: An implementation for the iOS platform of the Flutter `in_app_purch
 repository: https://github.com/flutter/plugins/tree/master/packages/in_app_purchase/in_app_purchase_ios
 version: 0.1.0
 
-# TODO(mvanbeusekom): Remove when in_app_purchase_platform_interface is published
-publish_to: 'none'
-
 flutter:
   plugin:
     platforms:
       ios:
         pluginClass: InAppPurchasePlugin
 
 dependencies:
-  # TODO(mvanbeusekom): Replace with pub.dev version when in_app_purchase_platform_interface is published
-  in_app_purchase_platform_interface:
-    path: ../in_app_purchase_platform_interface
+  in_app_purchase_platform_interface: ^1.0.0
 
   flutter:
     sdk: flutter
 
+  json_annotation: ^4.0.1
+  collection: ^1.15.0
   meta: ^1.3.0
   test: ^1.16.0