Add interface docs to IRequest.
Add interface docs to IRequest.

whitekiba/server,michaelletzgus/nextcloud-server,pollopolea/core,owncloud/core,lrytz/core,Ardinis/server,cernbox/core,pollopolea/core,jbicha/server,bluelml/core,endsguy/server,andreas-p/nextcloud-server,lrytz/core,endsguy/server,pollopolea/core,sharidas/core,cernbox/core,IljaN/core,owncloud/core,cernbox/core,xx621998xx/server,pixelipo/server,sharidas/core,cernbox/core,sharidas/core,IljaN/core,bluelml/core,IljaN/core,whitekiba/server,pixelipo/server,jbicha/server,owncloud/core,xx621998xx/server,lrytz/core,Ardinis/server,cernbox/core,jbicha/server,xx621998xx/server,IljaN/core,whitekiba/server,pixelipo/server,owncloud/core,pmattern/server,pollopolea/core,nextcloud/server,IljaN/core,endsguy/server,jbicha/server,pixelipo/server,andreas-p/nextcloud-server,pmattern/server,sharidas/core,sharidas/core,pollopolea/core,michaelletzgus/nextcloud-server,lrytz/core,nextcloud/server,Ardinis/server,whitekiba/server,pmattern/server,nextcloud/server,bluelml/core,bluelml/core,michaelletzgus/nextcloud-server,xx621998xx/server,xx621998xx/server,Ardinis/server,endsguy/server,jbicha/server,owncloud/core,andreas-p/nextcloud-server,phil-davis/core,bluelml/core,lrytz/core,nextcloud/server,andreas-p/nextcloud-server,michaelletzgus/nextcloud-server,pixelipo/server,endsguy/server,pmattern/server,andreas-p/nextcloud-server,whitekiba/server,Ardinis/server,pmattern/server