* refactor: take clients out of internal
* refactor: move stdio to pkg
* Move internal/api to api
* refactor: final changes for Kapacitor to access shared functionality
* chore: regenerate mocks
* fix: bad automated refactor
* chore: extra formatting not caught by make fmt
* feat: update generated client to include schema-management APIs
* feat: implement interfaces to decode flags and CSV
* feat: implement decoders for different measurement schema column formats
* feat: extend bucket CLI commands to support schema type property
* feat: add CLI commands to manage measurement schema
* test: add unit tests for bucket schema create, update and list commands