Adding Dynamic Form Field Configuration Example

[ChrisDecombe]

After discussion we Josh we decided to use the existing Github repository to prepare and publish an example of a Dynamic Form Fields configuration.

[ChrisDecombe]

@adamarnesen I need a reviewer for this changes in SLE example repo.
I have added a new section with an example of the DFF configuration.

Could you check my pull request?
Josh has already checked it.

This DFF Configuration example would look this this:

[prestwick]

It may be worthwhile is have several distinct examples rather than this one big example.

[ChrisDecombe]

It may be worthwhile is have several distinct examples rather than this one big example.

I have just removed the second group to keep it simple.
I have kept one example of each field type in the single group...
Would it be ok for you like this?

Josh wanted to have several groups that's why I have added a second group BUT I agree we should have an simple example.