[New Feature]: Support for visualizing KML/KMZ files

### Checked for duplicates

Yes - I've already checked

### Alternatives considered

Yes - and alternatives don't suffice

### Related problems

_No response_

### Describe the feature request

I have existing KML/KMZ files that I'd like to visualize using MMGIS. I currently have to convert them to other formats to get into MMGIS and it would be nice to have direct support.