* pass simple parameters to operation commands in as flags instead of URL-style query args (#200)
* read property flags for operation commands from spec and load into each new operation command
* add property flags to command
* pass flag arguments to api request
* validate to only accept url params
* fix string formatting
* update tests
* allow other data to be passed in stringarray flags
* add test for freeform data
* empty description field
* lint
* compare using parsed query string in operation_test
* store all flags as strings
* Fix linting issue (#206)
* Group request parameters flags separately in help messages (#211)
* Use dashes instead of underscores in flag names (#219)