#2635: [DS-9263][Improvement][master]optimize failover (#9281)

- add FailoverService.java
- move failover method  from MasterRegistryClient to FailoverService
- move failover code from FailoverExecuteThread to FailoverService

This closes #9263

commit.ref

@@ -1 +1 @@
-Subproject commit 9d7223b038999916ae16a72561d8e141590c1823
+Subproject commit 69923546a1586ceed97a2d013be6f5a8ee977529

commit.yml

@@ -2,25 +2,79 @@
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