v1 (or separate core from CLI)

[palkan]

• [x] Replace global configuration with per-run (WSDirector::Runner.new(**config).execute)
• [ ] Support passing raw scenario text contents (not only file paths)
  • [ ] Support locals for scenarios (so, raw scenario is passed through ERB)
• [ ] Update/relax deps (e.g., concurrent-ruby)
• [ ] Support passing URL query params and headers
• [ ] Partial payload match
• [ ] Make logging configurable
• [x] Add result object (instead of true or false)
• [ ] Add test helpers
• [x] Setup wsdirector and wsdirector-cli releases