* **ventcool:** Add a schema for VentilationFan ([fcfa520](https://github.com/ladybug-tools/honeybee-schema/commit/fcfa52074f708666a950be78ac3a06344366beef))
* **simulation:** Add a property for unmet_setpoint_tolerance ([6094e87](https://github.com/ladybug-tools/honeybee-schema/commit/6094e87b762043d2e9265ae6e89e1258ee184fd9))
* **validation:** Add an optional property for helper_geometry ([50d4aa9](https://github.com/ladybug-tools/honeybee-schema/commit/50d4aa9be23ffb59c74811c3d623503c279452c1))
* **validation:** Tweak ValidationError to work for multiple objects ([8543e06](https://github.com/ladybug-tools/honeybee-schema/commit/8543e063aa6f24b884c4abaa7f756480dda4f848))
* **validation:** Update validation schema for use with dragonfly ([5cd7748](https://github.com/ladybug-tools/honeybee-schema/commit/5cd7748e8782781e3d34d9b1d5e2c8752e6a4614))