Add support for boundary_self_managed_worker resource. (#293)

* add initial prototype of self managed worker resource and associated tests

* Add self managed worker resource and associated tests

* Update internal/provider/resource_self_managed_worker.go

Accept suggested schema changes for tags

Co-authored-by: Johan Brandhorst-Satzkorn <johan.brandhorst@gmail.com>

* add environment variable check for worker led auth testing

* change resource name from self_managed_worker to worker for consistency with the api

* update tag schemas, ensure all attributes have descriptions

* add generated docs for worker

* add examples for worker resource

* add examples for worker resource

* remove merge conflict

* Remove funtionality for reflecting tags in the schema

* remove unused attributes (all tags) from schema, updates tests to use 'boundary_worker' on resource checks

Co-authored-by: Johan Brandhorst-Satzkorn <johan.brandhorst@gmail.com>

internal/provider/provider.go

@@ -94,6 +94,7 @@ func New() *schema.Provider {
 			"boundary_scope":                        resourceScope(),
 			"boundary_target":                       resourceTarget(),
 			"boundary_user":                         resourceUser(),
+			"boundary_worker":                       resourceWorker(),
 		},
 	}