Implement context menu for schema editor
a context menu has already been realized for the currently deployed version of the schema registry ->attempt to migrate
(from redmine: issue id 312, created on 2018-01-22tgradl)
a context menu has already been realized for the currently deployed version of the schema registry ->attempt to migrate
(from redmine: issue id 312, created on 2018-01-22tgradl)