GMPLS update - 81: reducing explicit-path configuration parameters

Updated #MPLS-Tunnel #explicit-path configuration entries in GMPLS module to #reduce the necessary #parameters. The parameters #hop-as-number, #hop-lsp-id and #hop-path-computation-type have been removed. Instead of these parameters the #hop-address-type and #hop-address parameters are used. On specifying the #AS-Number or the #LSP-Id the hop-address-type is marked specifically for it and the hop-address will contain the value. The hop-path-computation-type is not used as it was marked obsolete by GMPLS framework and #tunnel-path-computation-type is used. The #path-computation-type is only specified in the tunnel level.

#GMPLS update 81 ...
[commit 8755c8b719aaae75a924f0c67fd6b52b9d1b2e37] (https://github.com/nes-repo/NES-Open-Switch/commit/8755c8b719aaae75a924f0c67fd6b52b9d1b2e37)