This would let us import YAML with multiple resources and add YAML templates that create related resources like image streams and build configs together.

See CONSOLE-580

Acceptance criteria:

• Users should be able to drag multiple files into the import yaml.
  • the yaml files should be displayed in the editor separated by "- - -"
• After clicking create
  • a dry run will be initiated and will report back any errors
  • upon receiving no errors from the dry run, the resources will be created
  • the results page will appear showing links for each resource