SF JSON Transformer

This function takes a range and converts it into a specific JSON format.

It can also take JSON in the same format and load it back into a range.

For example this range:

would be transformed into this JSON:

{
"Fruit": {
"Y1": 10,
"Y2": 2
},
"Vegetables": {
"Y1": 3,
"Y2": 4
},
"Cones": {
"Y1": 5,
"Y2": 7
}
}