[Config] Improve the deprecation features by handling package and versi…

[nicolas-grekas]

Q	A
Feature PR	symfony/symfony#35871
PR author(s)	@atailouloute
Merged in	5.1-dev

[javiereguiluz]

@atailouloute since the original code pull request doesn't have any description, I'm asking you if it's enough to document and do the changes that you added to the changelog:

 * The signature of method `NodeDefinition::setDeprecated()` has been updated to `NodeDefinition::setDeprecation(string $package, string $version, string $message)`.
 * The signature of method `BaseNode::setDeprecated()` has been updated to `BaseNode::setDeprecation(string $package, string $version, string $message)`.
 * Passing a null message to `BaseNode::setDeprecated()` to un-deprecate a node is deprecated

Thanks!