• Introduce experimental support for browser clients to the Firestore emulator.
• No longer require authentication to run the functions emulator.
• Add new project management commands: projects:create, projects:list,
  projects:addFirebase.
• Add new app management commands: apps:create, apps:list, apps:sdkconfig.
• Improve init command to be able to create a new project.
• Automatically choose a port for the Firestore emulator to serve WebChannel traffic.
• Add support for running queries inside of transactions to the Firestore emulator.