s3: smbd: Moving lp_posix_pathnames() out of the lower-level code.

s3: smbd: Moving lp_posix_pathnames() out of the lower-level code.

Prepare to remove lp_posix_pathnames() out of ms_has_wild().
Check before calls to ms_has_wild().

Fix smbd_smb2_query_directory_send().

No SMB2 client uses unix extensions yet, but this is a placeholder
for when we move the POSIX pathnames bit into the SMB2 request
when moving to handle based code.

Signed-off-by: Jeremy Allison <jra@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>