* Implementation of passing multiple arguments to ImageLoader in order to avoid asynchronous issues and for performance as BottomBar re-creates all views every time an item is added

* removed redundant checks for testId

* Implementation of passing multiple arguments to ImageLoader in order to avoid asynchronous issues and for performance as BottomBar re-creates all views every time an item is added

* removed redundant checks for testId

closes #2831

* Use AHBottomNavigation for BottomTabs

* Process passed options for all layout types

Static options are still processed only for components

* ios e2e fix

* Update RNNNavigationController.m

Only reason to offload icon loading to background thread is to avoid
supposed network on main thread calls which happen only in debug since
icons are passed loaded from localhost.

* upstream merge

* Fixed bad merge

* More bad merges

* Mostly done, however a few properties missing and tests remain.

* async icons loading

* Left button

* Whoops!

* Added button size

* updated docs

* refactor

* Rebase fixes

* Rebase fixes

* rebase fix

* Rebase fixes

* rebase fixes

* reset contributing