Pyramid added

Assets/Resources/Prefabs/Facts/Pyramid.prefab

Assets/Resources/Prefabs/Facts/Pyramid.prefab.meta

...esources/Prefabs/UI/Icons/FactIcons/DisplayPyramid.prefab

...ces/Prefabs/UI/Icons/FactIcons/DisplayPyramid.prefab.meta

.../Prefabs/UI/Icons/FactIcons/DisplayTriangularPrism.prefab

...abs/UI/Icons/FactIcons/DisplayTriangularPrism.prefab.meta

Assets/Scenes/Worlds/RiverWorld.unity

Assets/Scripts/InteractionEngine/FactHandling/FactSpawner.cs

Assets/Scripts/InteractionEngine/FactHandling/Facts/Fact.cs

...ripts/InteractionEngine/FactHandling/Facts/PyramidFact.cs

.../InteractionEngine/FactHandling/Facts/PyramidFact.cs.meta

Assets/Scripts/InventoryStuff/Items/images/Pyramid.png

Assets/Scripts/InventoryStuff/Items/images/Pyramid.png.meta

...s/Scripts/InventoryStuff/Items/images/TriangularPrism.png

...ipts/InventoryStuff/Items/images/TriangularPrism.png.meta

Assets/Scripts/InventoryStuff/Items/images/triangle.png

.../Scripts/MMTServer/CommunicationProtocoll/MMTConstants.cs

Assets/Scripts/MeshGenerator/PyramidGenerator.cs

Assets/Scripts/MeshGenerator/PyramidGenerator.cs.meta

Assets/Scripts/MeshGenerator/ShapeGenerator.cs