Rain Water Tank v1.0.0.0

This is my first mod, with more planned and in progress.
This is a water tank that can be filled as standard by trailer for the purposes supplying your greenhouses and animal pens.  Additionally, when it rains, water will be collected within the tank to increase the amount stored.
The water tank is created as a production rather than a silo, and will be found as a factory in the construction menu.  However the production does not require activating in order for it to work.
For those that play with the Manure System mod, this tank can be filled/emptied using a compatible trailer.  Otherwise the trigger for both filling/emptying is in front of the tap.
The mod uses custom 3d models and marker icon.