INT-4475: Remove some qtypes from unmapped content report

The description and random question types
should not display in teh unmapped content
report because outcomes cannot be
mapped to them.
INT-4475: Refactored outcome_service_report_helper

This class was getting too large, broke it into
the following:
* outcome_mod_archetype - gets modules by archetype
* outcome_service_coverage_helper - coverage report helper
* outcome_service_activity_helper - activity completion, scales and attempts
INT-4475: Refactored move panel

* Panel now looks a little better and makes better use of space
* The outcome set edit form has been broken up into logical bits
INT-4475: Add plugin names for outcome support plugins
INT-4475: Fixes from core review

* Removing ORDER BY NULL because it is not DB agnostic
* Added new index to replace need for ORDER BY NULL
* Several Postgresql fixes
* Fixed broken unit test
* Attempt to fix edit outcome modal width
* Less wordy warning about saving outcomes
* White space fixes