Introduce a concept of JSON namespaces

[curtisy1]

It would be great to have some kind of namespacing concept to distinguish this library from the built-in resx generator.

• Instead of a simple key-value mapping, introduce a key-object mapping
• Each object is a class on its own, residing in the global namespace
• Nesting is allowed up to a certain depth of x

The following json should generate something like this, for reference:

{
	"Key": "Value",
	"AnotherKey": {
		"NestedKey": "NestedValue"
	}
}

Option 1:

namespace ABC {
	public class CBA { // default namespace. Every key-value pair goes here
		public string Key => "Value";
	}

	public class AnotherKey {
		public string NestedKey => "NestedValue";
	}
}

Option 2:

namespace ABC {
	public class CBA {
		public string Key => "Value";

	    public class AnotherKey {
		    public string NestedKey => "NestedValue";
	    }
	}
}