Add support of template for docblock methods

[vincent4vx]

See fix #7320

Add the support of template type on return type and parameter of a method declared using @method annotation, on class or interface :

<?php
/**
 * @template T
 * @method T get()
 * @method void set(T $value)
 */
class Container
{
    public function __call(string $name, array $args) {}
}

class A {}
function foo(A $a): void {}

/** @var Container<A> $container */
$container = new Container();
$container->set(new A());
foo($container->get());

Current version do not process template types, so calling those pseudo methods will always result to InvalidArgument error.

[orklah]

Thanks!