Changes to Get grouped page metrics

added the optional property groups/items/cls_p50 to the response with the 200 status

added the optional property groups/items/cls_p75 to the response with the 200 status

added the optional property groups/items/cls_p90 to the response with the 200 status

added the optional property groups/items/fcp_p50 to the response with the 200 status

added the optional property groups/items/fcp_p75 to the response with the 200 status

added the optional property groups/items/fcp_p90 to the response with the 200 status

added the optional property groups/items/inp_p50 to the response with the 200 status

added the optional property groups/items/inp_p75 to the response with the 200 status

added the optional property groups/items/inp_p90 to the response with the 200 status

added the optional property groups/items/lcp_p50 to the response with the 200 status

added the optional property groups/items/lcp_p75 to the response with the 200 status

added the optional property groups/items/lcp_p90 to the response with the 200 status

added the optional property groups/items/ttfb_p50 to the response with the 200 status

added the optional property groups/items/ttfb_p75 to the response with the 200 status

added the optional property groups/items/ttfb_p90 to the response with the 200 status