sustain each input field access after editing

[ghost]

This PR is to keep the current access level to each independent input field after editing. Before the simple access input value affects the access value of each field when the form is initially loaded.

[jdalsem]

simple access is meant to update all access fields to the same value... you can just disable this functionality in the plugin settings. The reason the value is updated when the edit form loads is that i think the simpleaccess input should reflect the actual situation

[ghost]

It's true the simple access functionality can be disabled and in fact it's disabled by default. It's my fault that I forgot I made some changes to the edit form before to make every independent field available to the user as well. However, I still think my point makes more sense. Consider this user scenario:

• I enabled the simple access functionality and change the all the input field to be private, but I want to keep the 'brief introduction' filed public
• After saving, this will work as expected, but when I want to edit the form again. Each independent field's access setting will be overidden by the simple access field when the form loads, which I think should only happen when the user change the simple access field.

In fact, even I tried in a fresh elgg installed site, after I changed all of the fields to private and go back to edit my profile again, the simple access field still shows public, so it didn't reflect the actual situation per se.

[jdalsem]

As the suggested change is not how i intend the usage of the 'simple access' feature i am closing this PR