skip some test for storage backends that don't support touch
skip some test for storage backends that don't support touch

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