There is a new Texture data-block socket that we can use in Geometry Nodes now. This commit replaces the texture property of a node and gives it a texture input socket instead. That increases flexibility. The texture socket still has some limitations that will be lifted in the next couple of days (e.g. it's not supported by the switch node and cannot be exposed the a modifier yet). Differential Revision: https://developer.blender.org/D11222