All cloud infrastructures should have in their form a field to upload the user's credentials #44
Description
Currently, the rm.cred that is used by the node to register to the RM is located in the node.jar. If ever the credentials change on the server side, then it will never be possible for the node to connect. To prevent this problem, the best way is to ask the user to provide its own credentials, so we need to add this in the forms of all cloud infrastructures, like for the LocalInfrastructure.