Release Notes Abra

Version 3.5.6
New Feature
* [ABRA-530] - Instance creation: 65% performance improvement on instance building
* [ABRA-527] - InstanceBuilder: Support custom linkrole, arcrole and role for footnotes
* [ABRA-528] - Instance creation: API to link facts from facts

Bug
* [ABRA-534] - XBRL Formula: Wrong number of evaluations
* [ABRA-529] - XbrlJson: converter removes html tags inside footnotes