Change automatic default skill proficiency level

Currently, when you add skills to an ACD user, the skill is added at a proficiency level 3 by default. You can change it manually but it is not persistent; if you remove the skill and then add it back later it does not remember the previous proficiency level but again defaults to level 3.

A better solution would be to allow admins the option to specify the default proficiency level for individual skills. That way, you could add new ACD skills to a user as needed without having to take the extra step of changing the proficiency level every single time.