Display summary of progression under title

[sergei-maertens]

Taiga DH 685, business case "ondernemers"

The progress indicator can be disabled (wish) already, but in the current situation this removes all feedback about the progress to the end user.

To address this, a summary of the progress must be displayed below the step title (above the form fields):

Step [X] of [total]

[total] is updated depending on the real number of relevant steps (according to logic evaluation more or less can become relevant).

Tasks

• [ ] Add option to display or not (independent from the progress indicator)
• [ ] Add component to Form.js to dynamically display the step information