v1.0.0

There has been a lot of new features in version 1.0 of graphql-ppx. Below some
of the main changes. After 1.0 we are going to record a more detailed changelog.

Large changes

• 🚀 💥 New API, no definition, first class modules and clients can
  extend definitions
• 🚀 💥 Using records instead of objects
• 🚀 Generating types
• 🚀 Serialization

Other features

• 🚀 Generating a module signature
• 🚀 Support for recursive modules
• 🚀 💥 Raw types
• 🚀 Leaner parse
• 🚀 💥 ppxCustom instead of bsDecoder
• 🚀 ppxAs
• 🚀 Better editor support
• 🚀 Better errors
• 🚀 Docstrings
• 🚀 Multiple fragments or operations per extension point
• 🚀 Configuration in bsconfig.json
• 🚀 Tagged template literal support
• 🚀 graphql extension points in interface files
• 🏠 Snapshot and compile testing