v1: fix move response status from osfstorage
v1: fix move response status from osfstorage

move/copy response status should be 201 if a new resource is created or
200 if an existing resource is overwritten.  copy was already doing
this, move now does the same

[#OSF-4755]

TomBaxter/waterbutler,rdhyee/waterbutler,cosenal/waterbutler,kwierman/waterbutler,Johnetordoff/waterbutler,felliott/waterbutler,CenterForOpenScience/waterbutler,chrisseto/waterbutler,RCOSDP/waterbutler