[Filtered] added "list view userparam"

[gesinn-it-gea]

This PR is made in reference to: #629

This PR addresses or contains:

• added "list view userparam" to support SMW's #userparam

This PR includes:

• [ ] Update of RELEASE-NOTES.md
• [x] Tests (unit/integration)
• [x] CI build passed

Fixes #629

[gesinn-it-gea]

@kghbln what needs to be done with regard to documentation. Do you take care of that?

[gesinn-it-gea]

@JeroenDeDauw @kghbln can you please have a look, if the PR can be merged.

[kghbln]

what needs to be done with regard to documentation.

It will be cool if you could add docu.

Do you take care of that?

I can polish if necessary.

[gesinn-it-gea]

@kghbln I can update SMW.org and prepare the release notes.