-Emulated_nsc.cc uses CUBIC for UE also

-Added lte_nsc.cc which uses CUBIC for both end-host and UE.

-Retreived more tcp's vars from nsc/<linux>/nsc/support.c/nsc_get_tcp_var() and src/internet/model/nsc-tcp-socket-impl.cc/UpdateVars()

-Added config input files for nsc experiments.