GMPLS update - 77: adding new set of custom tunnel configuration parameters

Added new set of #custom #configuration #parameters for #tunnels in #GMPLS module. The new parameters are #reroute_upstream_enable, #upstream_resource_index, #crankback_model, #crankback_enable, #crankback_list_index, #softpreemption_enable, #oam_enable and #oam_status. The reroute_upstream_enable controls the capability to reroute the tunnel from upstream node and procedures to request reroute. The crankback_model indicates the specific model being followed by the stack e.g. end-to-end-rerouting, boundary-rerouting or segment-rerouting and crankback_enable controls whether crankback operations are permitted or not. The softpreemption_enable parameter enables the soft-preemption procedures - when needed. The oam_enable enables/disables OAM procedures on the tunnel.

#GMPLS update 77 ...
[commit ae3b5d5823e92b3f3d841456a74486a2468a223b] (https://github.com/nes-repo/NES-Open-Switch/commit/ae3b5d5823e92b3f3d841456a74486a2468a223b)