feat: Fully automatic autolinking for Nitrogen

[mrousavy]

With this PR, Hybrid Objects can now be fully autolinked and their constructors are now generated.

All users need to do is to add the names of the classes they created to nitro.json. Example:

{
  ..
  "autolinking": {
    "ImageFactory": {
      "swift": "HybridImageFactory",
      "kotlin": "HybridImageFactory"
    },
    "TestObject": {
      "cpp": "HybridTestObject"
    },
    "SwiftKotlinTestObject": {
      "swift": "HybridSwiftKotlinTestObject"
    },
    "KotlinTestObject": {
      "kotlin": "HybridKotlinTestObject"
    }
  },
}