return file with pending claim with get_lbry_file
return file with pending claim with get_lbry_file

if a lbry file from the winning claim is in the file manager, return
it. otherwise return a lbry file with a pending claim if one exists.

zestyr/lbry,lbryio/lbry,zestyr/lbry,lbryio/lbry,zestyr/lbry,lbryio/lbry