Add touchlinesl integration (#124557)
* touchlinesl: init integration
* integration(touchlinesl): address review feedback
* integration(touchlinesl): address review feedback
* integration(touchlinesl): add a coordinator to manage data updates
* integration(touchlinesl): address review feedback
* integration(touchline_sl): address feedback (and rename)
* integration(touchline_sl): address feedback
* integration(touchline_sl): address feedback
* integration(touchline_sl): update strings
* integration(touchline_sl): address feedback
* integration(touchline_sl): address feedback