Return Tuple

[TobiasvdVen]

These changes expand support for the class of "constructor" methods (that return Self, Box<Self>, etc.) to return a tuple containing Self. For example:

#[faux::create]
pub struct Foo;

#[faux::methods]
impl Foo {
    pub fn new() -> (Self, i32) {
        (Foo, 0)
    }
}

Let me know what you think.

Minor note: In the commit history, it can be seen that I split the macros project in two, in order to be able to invoke the macro logic from a test and debug it. I found this helpful to learn how faux worked and make my changes. I undid all of this for purpose of the PR though, as it would greatly clutter the changes.

[nrxus]

Thank you! I'll try to do a patch release soon with this feature

[TobiasvdVen]

Awesome, thanks :)