Proposed queue interface extensions

[ikavgo]

Proposed Changes

This PR continues and hopefully somewhat completes rabbit_queue_type story. It also addresses Management UI ifs pollution.
I introduce a number of additional callbacks to rabbit_queue_type module. I and Karl entertained this idea of reusing capabilities for some. For xref/dialyzer sake I kept the callbacks.
In principle all tests should pass as is...

Types of Changes

What types of changes does your code introduce to this project?
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• Bug fix (non-breaking change which fixes issue #NNNN)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause an observable behavior change in existing systems)
• Documentation improvements (corrections, new content, etc)
• Cosmetic change (whitespace, formatting, etc)
• Build system and/or CI

Checklist

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• I have read the CONTRIBUTING.md document
• I have signed the CA (see https://cla.pivotal.io/sign/rabbitmq)
• I have added tests that prove my fix is effective or that my feature works
• All tests pass locally with my changes
• If relevant, I have added necessary documentation to https://github.com/rabbitmq/rabbitmq-website
• If relevant, I have added this change to the first version(s) in release-notes that I expect to introduce it

Further Comments

Note: I see global.js reformatting too much too. To be fixed.

[michaelklishin]

For 4.1.0, we will add only a handful of these (as one or a few separate PRs).