Add issue and PR templates to all repos #435

We should add a .github folder to each repo with issue and PR templates. Let's figure out what the wording should be or if there is a good example we can copy and then I think we can write a quick script to add this to each repo.

Repos

• feathers
• feathers-memory
• feathers-mongodb
• feathers-mongoose
• feathers-nedb
• feathers-query-filters
• feathers-errors
• feathers-hooks
• feathers-hooks-common
• feathers-commons
• feathers-rethinkdb
• feathers-rest
• feathers-socketio
• feathers-primus
• feathers-authentication
• feathers-authentication-oauth2
• feathers-authentication-local
• feathers-sendgrid
• feathers-mailgun
• feathers-mailer
• feathers-stripe
• feathers-twilio
• feathers-reactive
• feathers-blob
• feathers-levelup
• feathers-permissions
• generator-feathers-plugin
• feathers-cli
• feathers-generator
• feathers-socket-commons
• feathers-localstorage
• feathers-sequelize
• feathers-knex
• feathers-reactive
• feathers-waterline
• feathers-configuration
• feathers-batch
• feathers-sync
• feathers-bootstrap
• feathers-service-tests?
• feathers-client