Support http communication implement for DLRover Master and Agent. (#… #4654

Job	Run time
dlrover-python-test	4m 16s
dlrover-system-test-deepfm	3m 17s
brain-test	1m 32s
dlrover-system-test-criteo-deeprec	2m 57s
dlrover-system-test-tf2	1m 28s
elasticjob-controller-test	1m 35s
go-master-test	1m 21s
pre-commit	1m 7s
	17m 33s

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