FIles: Transfers not handling src/dest sharedCtxGrantor properly

[dvernon-tacc]

Files transfers are not respecting the sharedCtxGrantor fields. To repro - get a files service token, and add those fields to the transfer request. This can also be done with a job like this -

(from Rich)
To recreate problem:
Create System S owned by user U with static effectiveUserId = U.
Create App A owned by user U.
App A explicitly sets archiveSystemID to the same value as the execSystemId.
Similarly, App A sets the archiveSystemDir to the execSystemOutputDir.
Share A publicly.
Let user U2 submit a job using A.
The job does not set the ArchiveFilter.