Added DLX feature for queues

[bckp]

No description provided.

[coveralls]

Pull Request Test Coverage Report for Build 6979884536

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• 68 of 87 (78.16%) changed or added relevant lines in 4 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage decreased (-0.6%) to 48.892%

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Changes Missing Coverage	Covered Lines	Changed/Added Lines	%
src/DI/Helpers/ExchangesHelper.php	43	44	97.73%
src/DI/Helpers/QueuesHelper.php	18	19	94.74%
src/DI/RabbitMQExtension.php	4	21	19.05%

Totals
Change from base Build 6920462366:	-0.6%
Covered Lines:	331
Relevant Lines:	677

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💛 - Coveralls