REST Implementation for Blue Ocean 1.27.11 API

Packages 
Package Description
io.jenkins.blueocean.service.embedded  
io.jenkins.blueocean.service.embedded.analytics  
io.jenkins.blueocean.service.embedded.rest  
io.jenkins.blueocean.service.embedded.rest.junit  
io.jenkins.blueocean.service.embedded.util