OC_Image: change static vars to object vars
OC_Image: change static vars to object vars

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