Add debug info for deploy/delete/resize

To make debug process conveniently , add more debug logs into
deploy/delete/resize methods , at the top of method and at the
end of the method , to make the process clearly , and print exception
stacktrace if necessary.

The log info should be like this :
1. Enter to $method instance of $instance_uuid
2. Exit to $method instance of $instance_uuid

Change-Id: I6678976c09ba923a0ada68a37a706642c18ed0f0
Merge "Add debug info for deploy/delete/resize"