fs: add VDI.similar_content
fs: add VDI.similar_content

djs55/message-switch-1,xapi-project/message-switch,djs55/message-switch,djs55/message-switch-1,djs55/message-switch,djs55/message-switch-1,xapi-project/message-switch,djs55/message-switch,xapi-project/message-switch