Improved passing step options

[DavertMik]

This PR should improve how we pass step options from test

There will be a userland function to pass options to steps:

const step = require('codeceptjs/steps');

-I.limitTime(5).click('Link')
+I.click('Link', step.timeout(5))

-I.retry(5).click('Link')
+I.click('Link', step.retry(5))

Also it can be used to pass additional options into helper:

I.see('sign in', step.opts({ ignoreCase: true }));