Apollo Connector MongoDB

Apollo connector for MongoDB, version 3.1.1, providing seamless integration with GraphQL (Apollo). It facilitates MongoDB connection, result caching via Facebook's DataLoader for batch processing and caching, and unit testing with a handy `withEntity` function. Built in ES6 with CommonJS modules, requires Node 6+. Key differentiators include built-in caching for database queries and easy unit testing support, distinguishing it from raw MongoDB drivers or other GraphQL connectors. Release cadence appears low, with maintenance mode likely.