More util nodes

[ronruizG]

Probably you already have this in mind, but a great way of use the power of nodes it's to have float, integer (for lists), for loop (2 nodes that work together one at the start that outputs the "i" for iterations in the chain and a second one for at the end of the chain to wrap all the nodes that are included in the loop, similar to what houdini does), multiply, add nodes. Probably there will be issues for the restrictions of the size for latentImage but maybe a special node could help with that. Also basic image process for crop and resize and position over a colored solid color (This could help for image input of controlnet). BTW thanks for this great UI, It helps to understand so many things of the process