Style/CaseLikeIf add an option for X or more occurrances

[matthewhively]

The Style/CaseLikeIf cop currently always flags any if/elsif sections that could be refactored to use case/when instead.
I would like the ability to restrict failures to if/elsif sections that have X or more branches.

It makes sense to my team that large blocks of if/elsif that have simple actions in each branch make sense to convert to case/when. But if there are only 2 branches, or if the code within each branch is a large block, it is clearer to keep it as if/elsif.

So additional options for the cop configuration would be welcome. For now we will be disabling this cop.

[fatkodima]

Makes sense to me. There is a similar config option for Style/HashLikeCase cop. I will try to implement that.