[REQUIREMENT] [Go Service]should support customize config pseudo in config yaml ,same as java service

[JiLiang888]

Describe the bug [BUG] [Go Service]should support customize config pseudo in config yaml ,such as java service

To Reproduce [BUG] [Go Service]should support customize config pseudo in config yaml ,such as java service ,below : in java service cofig file , #pseudo.enabled=false pseudo.existSourceTag=#@ pseudo.notExistSourceTag=@@

Expected behavior 1.if source no-existed , translation data like : 2.if source existed , translation data like :

commit https://github.com/vmware/singleton/commit/fb3c0bb0db9b2cac59097d3250c10e4cbf180998