Move AbstractPipelineJobAPIImpl.convertJobConfiguration and swapToYamlJobConfiguration to PipelineJobConfiguration #2669

Job	Run time
Detect Changed Files	7s
Import Global Environment / init-environment	4s
E2E - transaction on mysql:5.7	3s
E2E - transaction on postgres:12-alpine	2s
E2E - transaction on enmotech/opengauss:2.1.0	3s
E2E - pipeline on mysql:5.7	17m 4s
E2E - pipeline on postgres:12-alpine	10m 17s
E2E - pipeline on enmotech/opengauss:2.1.0	14m 21s
E2E - showprocesslist on mysql:5.7	3s
	42m 4s

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