Create `oscd-filtered-list` based on `filtered-list`

[ca-d]

As a plugin author and maintainer of already existing plugins, I need to have open-scds filtered-list available through nmp.

• slot right and left to add filter icon buttons

Requirements:

• move filtered-list to oscd-filtered-list repo
• change tag name to oscd-filtered-list
• do !NOT! extend from mwc-list but use it in the render method
• add properties

name	type	description
searchFieldLabel	string	text on the filter textbox
disableCheckAll	boolean	disable the "check all" button
filter	string	the current value of the filter textbox
wrapFocus	boolean	whether focus wraps around the end and beginning of the list
multi	boolean	multi-select
activatable	boolean	color icons permanently on clicking
@action	event	fired before selection is made (find out: is this actually needed?)
@selected	event	fired after selection is made

TODO: search codebase for instances of filtered-list usage and add any properties/events/methods used that are not listed here.

• propagate selected event for any changes on maybeValue
• propagate ... event for any changes on ...
• add screenshot tests
• add storybook

Additional Information This web-component is used pretty much everywhere in the software

[Sander3003]

Almost done; Still todo: some testing

[Sander3003]

The documentation needs to be added in the readme.md