Support for generating skeleton for custom map objects

[allejo]

Feedback on map object editor

I think if the provided ones had an explanation why they're there instead of just blocking you from editing them, it would help
I didn't know what I was looking at
also, a note that you click to edit the names or types
and an option to delete properties or arguments
basically, any field that's there but can't be edited needs to explain its presence, and any field that can be edited needs to let the user know that and also let the user know how to edit it

/cc @asinck

Still Left To Do

• Add constructor definition to map object classes
• Handle the for loop for parsing map object data and saving it into classes
• Add vector for handling map objects in the main plug-in class
• Add support for making optional map property arguments
• Add support for deleting properties
• Add support for deleting property arguments
• Improve event emission for triggering a rebuild of the plug-in template