Enable UI Testing via unique Element IDs in webSDK

For test automation, we would need "attributes" to find elements to interact with easy
and stable. Is it possible to provide a build that has these kind of attributes?

The general idea is for html elements to have an attribute `data-cy` or `data-test-id`, example:

<input
id="main"
type="text"
class="input-box"
name="name"
data-test-id="name"
/>

The idea behind this is, id and class can change, but `data-test-id` will always stay the same, so the test case can stay the same even if the button style changes due to a change in the class.

If something similar would be possible for cumulocity too, then it would mean that we can write tests once and they would always work. One thing that we have to think about and agree on, is what name for the `data-test-id` to use. Do all of them have to be unique or not and etc.

Here is nice link for best practices when using data-cy: https://www.bigbinary.com/learn-qaautomation-using-cypress/data-cy-conventions
Here is nice link with good example when using data-cy: https://medium.com/agilix/angular-and-cypress-data-cy-attributes-d698c01df062
Only comment I have about this link is to not have data-cy attribute twice...
This: <button data-cy="first" (click)="first()" data-cy="first">First button</button>