Prior to this commit, `ArgumentValue<T>` would mainly focus on the
server-side support with the binding of arguments on Controller methods.
With the introduction of this feature on the client in gh-1174, this
commit reconsiders both the `ArgumentValue<T>` name and its package
location to reflect the broader support.
This commit deprecates `ArgumentValue<T>` in favor of `FieldValue<T>`
with similar support.
Closes gh-1187
9b9761f424