Introduce fixture aliases in gherkin style

[raniejade]

The following fixture aliases will be introduced:

• Scenario.beforeScenario -> Scenario.beforeGroup
• Scenario.afterScenario -> Scenario.afterGroup
• Scenario.beforeEachStep -> Scenario.beforeEachTest
• Scenario.afterEachStep -> Scenario.afterEachTest
• Feature.beforeEachScenario -> Feature.beforeEachGroup
• Feature.afterEachScenario -> Feature.afterEachGroup
• Feature.beforeFeature -> Feature.beforeGroup
• Feature.afterFeature -> Feature.afterGroup

The aliased fixtures will be deprecated in the context of the gherkin style. This can be done by:

class Feature(val delegate: GroupBody): LifecycleAware by delegate {
   ...

   @Deprecated(..., replaceWith = ReplaceWith("beforeEachScenario"))
   override fun beforeEachGroup(fixture: Fixture) { delegate.beforeGroup(fixture) }
}

[kamilmasyhur]

I see that you develop 2.1.0, already 28%
are you going to develop this? @raniejade

[raniejade]

I have not worked on the 2.1.0 milestone for quite a while now, it mostly contains task for supporting Kotlin Native. This will be included in the next release (2.0.9)