Optimize Permission handling on ui

[chrisknoll]

This PR starts to address the issues raised in #2908.

To test, there was a button added on configuration and will attempt to run all isPermittedXXX() methods on authAPI, and report the elapsed time.

The timings for old vs new are:

-- Origional code

Script execution time: 5.400000095367432 milliseconds
configuration.js:278 Script execution time: 4.100000023841858 milliseconds
configuration.js:278 Script execution time: 3.600000023841858 milliseconds
configuration.js:278 Script execution time: 4 milliseconds
configuration.js:278 Script execution time: 3.799999952316284 milliseconds
configuration.js:278 Script execution time: 3.9000000953674316 milliseconds
configuration.js:278 Script execution time: 3.399999976158142 milliseconds
configuration.js:278 Script execution time: 3.3000000715255737 milliseconds

--- New Code

Script execution time: 0.5 milliseconds
configuration.js:278 Script execution time: 0.7000000476837158 milliseconds
configuration.js:278 Script execution time: 0.3999999761581421 milliseconds
configuration.js:278 Script execution time: 0.3999999761581421 milliseconds
configuration.js:278 Script execution time: 0.3999999761581421 milliseconds
configuration.js:278 Script execution time: 0.5 milliseconds
configuration.js:278 Script execution time: 0.40000009536743164 milliseconds

Shows a 5 to 10-fold increase in performance.

[anthonysena]

Looks good from review on the Atlas WG call