feat: loading custom objects.json in ROM directory

[axel7083]

When loading a ROM in a given directory the editor will look for a file called objects.json.

If it exist, and properly formatted, it will load the objects inside in the ObjectDatabase.

If you define objects with the same id that one already defined inside the default objectdb.xml, yours will be used.

I am using json, because XML is bad.

Folder structure

hack-directory/
├─ ROM.nds
├─ objects.json

Example

objects.json

[{
  "id": 350,
  "actorid": 416,
  "category": 1,
  "name": "Peach NPC (dl)",
  "internalname": "@CUSTOM%data/custom_obj/peach_npc/peach_low.bmd",
  "description": "A custom Peach NPC",
  "dlreq": "@CUSTOM%data/dynamic/peach_npc.dylb"
}]