Allow Sending JSON String Data Application Command Objects Through Client

[ulty4life]

It is often easier to define an application command by writing json text, and having it stored in a text file or database, rather than using the command builders. It also makes the app command objects easier to read. It would be nice to be able to send a json string as a parameter to a Create*ApplicationCommandAsync overload.

[Panthr75]

Would this also apply to interaction responses as well?
e.g. SendJsonAsync, FollowupWithJsonAsync, etc.