chore: add iOS podspec

ios/RCTWeiBo.podspec

@@ -0,0 +1,30 @@
+Pod::Spec.new do |s|
+  s.name         = "RCTWeibo"
+  s.version      = "0.0.1"
+  s.summary      = "React-Native(iOS/Android) functionalities include Weibo Login"
+
+   # This description is used to generate tags and improve search results.
+  #   * Think: What does it do? Why did you write it? What is the focus?
+  #   * Try to keep it short, snappy and to the point.
+  #   * Write the description between the DESC delimiters below.
+  #   * Finally, don't worry about the indent, CocoaPods strips it!
+  s.description  = <<-DESC
+                  React-Native(iOS/Android) functionalities include Weibo Login
+                   DESC
+
+   s.homepage     = "https://github.com/GoyouTech/react-native-weibo-login"
+  s.license      = "MIT"
+
+   s.author             = { "GoyouTech" => "developer@goyouapp.com" }
+  s.platform     = :ios, "8.0"
+  s.source       = { :git => "https://github.com/GoyouTech/react-native-weibo.git", :tag => "master" }
+  s.source_files  = "**/*.{h,m}"
+  s.requires_arc = true
+
+   s.dependency "React"
+  s.vendored_libraries = "libWeiboSDK.a"
+  s.resource = "WeiboSDK.bundle"
+  s.ios.frameworks = 'QuartzCore', 'ImageIO', 'SystemConfiguration', 'Security', 'CoreTelephony', 'CoreText', 'UIKit', 'Foundation', 'CoreGraphics', 'Photos'
+  s.ios.library = 'sqlite3','z'
+
+ end