* [WIP] Igloczek styles cleanup (#5354)

* WIP: Styles architecture cleanup

* Fix build

* Move the reset to css on client

* moving some CSS from api.addAssets to api.addFiles

* moving more files to built time compilers

* Restoring clearfix

* moving more files to built time compilers

* moving more files to built time compilers

* move fontello to theme package

* Renaming files to preserve git history

* Renaming files to preserve git history

* using min to preserve history

* Fix lint

* organizing

* Renaming files to preserve git history

* Renaming files to preserve git history

* Fix lint

* Fix lint

* Renaming files to preserve git history

* Moving another less file to cue compiled at build time

* Fix lint

* Moving another less file to be compiled at build time

* adding some part of lesshat into temp mixings

* Put transitions back with some temp redundant mixing

* commenting out unused mixings

* removed unused mixings from lesshat

* Fix lint

Renamed sound files

Fixed the font path in the demo html file

I moved the google icon and the cake icon to other locations that doesn't have the bidi-mirror feature.

Remove the icons that are not mirrored to regular locations. And moved the icons that need mirroring to mirrored locations. Replaced "octicon-chevron-right" with new set of mirrored icons from fontello