[doc] Add FileInfo to the list of included objects.
[doc] Add FileInfo to the list of included objects.

Also sort list by class occurence.

Change-Id: I96ea48976c8c02d08b67f9d3383b5f811986dbb6

Darkdadaah/pywikibot-core,magul/pywikibot-core,TridevGuha/pywikibot-core,happy5214/pywikibot-core,happy5214/pywikibot-core,wikimedia/pywikibot-core,darthbhyrava/pywikibot-local,h4ck3rm1k3/pywikibot-core,npdoty/pywikibot,npdoty/pywikibot,icyflame/batman,hasteur/g13bot_tools_new,smalyshev/pywikibot-core,hasteur/g13bot_tools_new,trishnaguha/pywikibot-core,magul/pywikibot-core,jayvdb/pywikibot-core,VcamX/pywikibot-core,PersianWikipedia/pywikibot-core,emijrp/pywikibot-core,hasteur/g13bot_tools_new,Darkdadaah/pywikibot-core,jayvdb/pywikibot-core,h4ck3rm1k3/pywikibot-core,valhallasw/pywikibot-core,xZise/pywikibot-core,wikimedia/pywikibot-core