Add constructor to inject collator
Add constructor to inject collator

Adding the possibility for instantiating \OC\NaturalSort with an
injected collator. This makes the use of a specific collator enforcable.

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