Allow deprecating input fields and arguments (InputObjectType)

[TaProhm]

Q	A
Bug fix?	yes
New feature?	no
BC breaks?	no
Deprecations?	no
Tests pass?	yes
Documented?	no
Fixed tickets	#...
License	MIT

The @deprecated directive is supported by this bundle for different GraphQL entities: Types, Objects, Interfaces, Enums.
But not for Inputs for some reason.

[TaProhm]

Hi @mcg-web and @Vincz. Could this PR be reviewed, please. The change is relatively small, but rather important for everyday work.

[Vincz]

Hi @TaProhm, sorry for the late reply.
Would you mind to update this line :

GraphQLBundle/src/Config/Parser/MetadataParser/MetadataParser.php

Line 401 in f33382a

], self::getDescriptionConfiguration(static::getMetadatas($reflectionClass)));

to pass true as the second argument of getDescriptionConfiguration.

Can you also add tests? (just to ensure that it works when we add the directive in yaml or with annotations/attributes)

[TaProhm]

@Vincz Thank you for pointing out in the right direction. As a result I stuck with" Overblog\GraphQLBundle\Tests\Functional\Type\DefinitionTest" for InputObjectType. It turned out there is an issue with webonyx/graphql-php regarding input values deprecation webonyx/graphql-php#110
I will amend this PR with tests as soon as it will be possible.

[Vincz]

Hi @TaProhm, it seems the issue in webonyx has been fixed: webonyx/graphql-php#110
:)

[TaProhm]

Hi @Vincz

It's only now that I've been able to give a detailed answer. I contributed to webonyx/graphql-php/issues/110 during my vacation, and then I was going to finish this PR. But now there is not enough time. However, this functionality is rather necessary, so I plan to finish it as soon as I can.

[TaProhm]

@Vincz, I have updated this PR with actual commit containing new code and tests. It is ready to be reviewed.

[Vincz]

Awesome @TaProhm! Thank you very much for this :)