construct_path: Generates a single Graph Ornstein-Uhlenbeck path with the given
network topology (nw_topo), noise increments (noise),
initial values (y_init) and unique time difference (delta_time).
Description
Generates a single Graph Ornstein-Uhlenbeck path with the given
network topology (nw_topo), noise increments (noise),
initial values (y_init) and unique time difference (delta_time).