Additional approval buttons for merge request
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### Problem to solve
Sometimes I'm not fully satisfied with the code and I don't want to approve specific merge request. At the same time team is under heavy pressure to deliver feature/bugfix. Approving bad code means that person takes responsibility that this piece of code was reviewed without any major concerns which puts me under two fires.
### Intended users
Merge request approvers.
### User experience goal
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### Proposal
Introduce "Acceptable" and "It works" statuses and add ability to specify their weight (e.g. 0.75 and 0.5 correspondingly).
* Acceptable - feature works but some part of the code could be done better and this can/should be changed in future.
* It works - urgent feature that must be delivered yesterday that has quick fixes, hacks and terrible code that must be changed as soon as possible but proper fix takes too much time. Some minor functionality may be broken.
This approach keeps track on quality of the code and allow to have dynamic number of required approvals.
### Further details
For instance minimum required approvals is 2. This means that following combinations are possible:
1. Acceptable, Acceptable, It works => 0.75 + 0.75 + 0.5 = 2
2. Approved, It works, It works => 1 + 0.5 + 0.5 = 2
3. Acceptable, Acceptable, Approved => 0.75 + 0.75 + 1 = 2.5
and so on.
### Permissions and Security
Code reviewer
### Documentation
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### Availability & Testing
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What risks does this change pose to our availability? How might it affect the quality of the product? What additional test coverage or changes to tests will be needed? Will it require cross-browser testing?
Please list the test areas (unit, integration and end-to-end) that needs to be added or updated to ensure that this feature will work as intended. Please use the list below as guidance.
* Unit test changes
* Integration test changes
* End-to-end test change
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### What does success look like, and how can we measure that?
<!-- Define both the success metrics and acceptance criteria. Note that success metrics indicate the desired business outcomes, while acceptance criteria indicate when the solution is working correctly. If there is no way to measure success, link to an issue that will implement a way to measure this. -->
### What is the type of buyer?
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### Is this a cross-stage feature?
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### Links / references
issue