Remove owc-control

[MichaelLangbein]

Description

The project dlr-eoc/owc-control does not add much useful anymore.
As discussed here, it used to be useful because it added a download-functionality in combination with saving current state as OWC-Json, but that download functionality is now also available in @dlr-eoc/utils-browser.

As such, this project can be removed.

• Does this change impact existing behaviors? If so how?
  • No, the project has not been used anywhere else in the frontend-libraries, and neither has it been used in any other projects derived from FELibs as far as I could find.

Relevant Package

This feature request is for @dlr-eoc/owc-control

[boeckMt]

Looks like the Package is used in https://github.com/dlr-eoc/ukis-frontend-libraries/blob/v7.3.1/projects/demo-maps/src/app/route-components/route-example-layers/route-map.component.html#L54

So if we remove it we should adjust the demo to reimplement the component https://github.com/dlr-eoc/ukis-frontend-libraries/blob/v7.3.1/projects/owc-control/src/lib/owc-control.component.ts

Maybe we can also add the logic of the component to a function in some utils

import { combineLatest } from 'rxjs';
import { first, map } from 'rxjs/operators';
...

 getState(layerSvc: LayersService, mapStateSvc: MapStateService) {
    const blSub = layerSvc.getBaseLayers();
    const olSub = layerSvc.getOverlays();
    const llSub = layerSvc.getLayers();
    const exSub = mapStateSvc.getExtent();
    const stSub = mapStateSvc.getMapState();
    const all = [blSub, olSub, llSub, exSub, stSub];
    return combineLatest(all).pipe(map((res) => {
      return {
        BaseLayers: res[0] as Layer[],
        Overlays: res[1] as Layer[],
        Layers: res[2] as Layer[],
        Extent: res[3] as TGeoExtent,
        MapState: res[4] as MapState,
      };
    }));
}

const id = 'myContext';
this.getState(this.layerSvc, this.mapStateSvc).pipe(first()).subscribe(data => {
    const owc = this.owcSvc.generateOwsContextFrom(id, [...data.BaseLayers, ...data.Overlays, ...data.Layers], data.Extent);
    this.downloadFile(owc, `${id}.json`);
});