[app] Add podspec for ANSIHelper.

From https://github.com/ali-rantakari/ANSIEscapeHelper

app/ANSIEscapeHelper.podspec

@@ -0,0 +1,15 @@
+Pod::Spec.new do |s|
+  s.name         = "ANSIEscapeHelper"
+  s.version      = "0.9.6"
+  s.summary      = "Objective-C class for translating between ANSI-escaped NSStrings and NSAttributedStrings."
+  s.homepage     = "https://github.com/ali-rantakari/ANSIEscapeHelper"
+  s.license      = "MIT"
+  #s.license      = { :type => "MIT", :file => "FILE_LICENSE" }
+
+  s.author       = { "Ali Rantakari" => "[email protected]" }
+  #s.social_media_url = "http://twitter.com/Ali Rantakari"
+
+  s.source       = { :git => "https://github.com/ali-rantakari/ANSIEscapeHelper.git", :commit => "2931e9e3d162ad76613231358f3d6a77eebd760f" }
+  s.source_files = "AMR_ANSIEscapeHelper.{h,m}"
+  s.requires_arc = true
+end