Add podspec

Author: DJBen

TestingExtensions.podspec

@@ -0,0 +1,23 @@
+
+Pod::Spec.new do |s|
+    s.name             = 'TestingExtensions'
+    s.version          = '0.2.7'
+    s.summary          = 'Testing helpers and extensions for SwiftRex and Combine'
+  
+    s.homepage         = 'https://github.com/SwiftRex/TestingExtensions'
+    s.license          = { :type => 'Apache', :text => '© 2021 Luiz Barbosa' }
+    s.author           = { 'Luiz Barbosa' => '[email protected]' }
+    s.source           = { :git => 'https://github.com/SwiftRex/TestingExtensions.git', :tag => "v#{s.version}" }
+  
+    s.ios.deployment_target       = '13.0'
+    s.osx.deployment_target       = '10.15'
+    s.swift_version               = '5.3'  
+  
+    s.source_files = 'Sources/**/*.swift'
+  
+    s.frameworks = 'XCTest', 'SwiftUI'
+
+    s.dependency 'SwiftRex', '~> 0.8.6'
+    s.dependency 'CombineRex', '~> 0.8.6'
+    s.dependency 'SnapshotTesting', '~> 1.8.2'
+  end