Support FormData like query()

[eve0415]

Feature Request

Very much like #815 or #819, I would like to see the implementation with FormData.

INPUT:

{
  "input1": "foo",
  "input2": "15",
  "checkbox": "on",
  "arr": "a,b"
}

{
  "input1": "foo",
  "input2": "15",
  "arr": "a,b"
}

Make it be able to parse and validate against this interface:

interface MyForm {
  input1: string;
  input2: number;
  checkbox: boolean; // "on" means true, else false
  arr: string[];
}

if not

interface MyForm {
  input1: string;
  input2: string;
  checkbox?: "on";
  arr: string;
}

If this is out of scope, feel free to close it.

[samchon]

Got it, new function typia.http.assertFormData<T>(input: FormData): T would be newly added.