HPCC-11231 Add FileScopeAccess control to access file scope permissions

The FileScopeAccess is added to WsAccess which allows authenticated
user to control File Scope access.

Also add code to check permission before allowing a user to access Enable
/disable scope scan and Clear Permission Cache.

Signed-off-by: Kevin Wang kevin.wang@lexisnexis.com
Merge pull request #5875 from wangkx/h11231

HPCC-11231 Add FileScopeAccess control to access file scope permissions

Reviewed-By: Russ Whitehead <william.whitehead@lexisnexis.com>
Reviewed-By: Anthony Fishbeck <anthony.fishbeck@lexisnexis.com>
Reviewed-By: Richard Chapman <rchapman@hpccsystems.com>