[EPIC] Add support for all Map functions

[andygrove]

What is the problem the feature request solves?

• [ ] [ ] operator
• [ ] map_concat function
• [ ] map_entries function
• [ ] map_filter function
• [ ] map_from_arrays function
• [ ] map_from_entries function
• [ ] map_keys function
• [ ] map_values function
• [ ] map_zip_with function

Describe the potential solution

No response

Additional context

No response

[dharanad]

I would like work on map, map_keys & map_values fn

[kazantsev-maksim]

I would like work on map_filter_function

[kurosch]

I would like to work on the [] operator.

@dharanad how far are you with the map operation?