Checks that all elements with given locator have given CSS properties.

```js
I.seeCssPropertiesOnElements('h3', { 'font-weight': "bold"});
```

@param {CodeceptJS.LocatorOrString} locator located by CSS|XPath|strict locator.
@param {object} cssProperties object with CSS properties and their values to check.
[!] returns a _promise_ which is synchronized internally by recorder