Greenhouse Upgrades (And Temple Sparring Spammable)

Added watering and increased plot upgrades to the greenhouse. This has been kinda tested. Also made sparring spammable. This has not been tested. I know you've done a lot of stuff related to the farm so if you see anything that could be done in a smarter way please make whatever edits you want. Upon seeing the greenhouse for the first time, two upgrades will unlock for it. The first is a sprinkler system which will automatically water the plots. The second is extra growing beds.