Add podspec file from Cocoapods master repo
user
```ruby
Pod::Spec.new do|s|
	s.name='DDExpandableButton'
	s.version='0.0.1'
	s.license = {:type => 'MIT', :file => 'LICENSE'}
	s.author = 'Damien Debin'
	s.homepage = 'https://github.com/ddebin/DDExpandableButton'
	s.summary="DDExpandableButton is a class designed to be used like an expandable UIButton; as seen in the iOS Camera app for the flash button."
	s.source={:git=>'https://github.com/ddebin/DDExpandableButton.git',:commit=>'9046184de675799655274c571b5c82d2ba826eff'}
	s.source_files='DDExpandableButton/*{.h,.m}'
	s.platform = :ios
end```
assistant