updateLayerFromServiceIfNeeded doesn't set maxCloudCoverPercent

[dgostencnik]

When layer is updated with default values by calling updateLayerFromServiceIfNeeded, maxCloudCoverPercent is never set. In other words, when you create a layer by using dashboard with cc different than 100, that value will never be used.

 test('params are set by default if not specified', async () => {
    const layer = new S2L2ALayer({
      instanceId: 'INSTANCE_ID',
      layerId: 'LAYER_ID',
    });

    mockNetwork.onGet().replyOnce(200, [
      {
        id: 'LAYER_ID',
        title: 'title',
        description: 'descriptions',
        styles: [{ name: 'default', description: 'Default layer style', evalScript: 'evalscript' }],
        orderHint: 0,
        datasourceDefaults: {
          upsampling: 'BICUBIC',
          mosaickingOrder: 'leastRecent',
          temporal: false,
          maxCloudCoverage: 50,
          previewMode: 'EXTENDED_PREVIEW',
          type: 'S2L2A',
        },
      },
    ]);
    await layer.updateLayerFromServiceIfNeeded();
    expect(mockNetwork.history.get.length).toBe(1);
    expect(layer.maxCloudCoverPercent).toEqual(50);
  });

While this is an easy fix, it will unfortunately require changing a bunch of tests and it might brake a feature or two in eob