[openFATE 307185] XPLAT need to support DFS junctions

Feature added by: Sudhakar GNVS (ssudhakar) Feature #307185, revision 1 Title: XPLAT need to support DFS junctions Requested by: Sudhakar GNVS (ssudhakar) Description: Currently XPLAT APIs do not support DFS junctions. There is no way to detect and traverse a link and connect to a different server using XPLAT APIs. The xplat support for it is partially available in xtier and xplat need to make use of it. Resolving the followig bugs by making this FATE entry: 309793 309830 493023   -- openSUSE Feature: https://features.opensuse.org/307185