Automatic merge from submit-queue
Federation apiobject cluster
add federation api group
add cluster api object and registry
~~generate cluster client~~ moved to #24117
update scripts to generate files for /federation
#19313#23653#23554
@nikhiljindal @quinton-hoole, @deepak-vij, @XiaoningDing, @alfred-huangjian @mfanjie @huangyuqi @colhom