Feature Request: Add in more options to no-multiple-empty-lines

[pieterocp]

Request

In addition to the on and off of no-multiple-empty-line it might be nice to allow it to be configured to a max property, defaulting to 1 as is the case currently but can be 2, 3 or 4 ...

It's often nice to have a couple of line breaks between sets of scenarios without having 3+ line breaks randomly in places. Making this configurable would allow this rule to be a bit more lax.

E.g. Adding the setting

{
  "no-multiple-empty-lines": ["on", {"max": 2}]
}

makes this feature file (from test-data-wip/MultipleEmptyLines.feature) valid:

Feature: Test for the no-multiple-empty-lines rule


Scenario: This is a Scenario for no-multiple-empty-lines
  Given I have a feature file with multiple empty lines
  Then I should see a no-multiple-empty-lines error

An additional stretch might be to extend this similar to the indentation rule where the max empty lines in the middle of a scenario/feature/background could be specified but it might get messy and overly complex to configure.

Implementation Concerns

Might be a backwards incompatible change if the configuration needs changing, unless it just handles the non-arrayed version defaulting to a max of 1.