Static setting for global params

[mateusfigmelo]

You can relevant code here

def input_parser(plan, input_args):
    sanity_check.sanity_check(plan, input_args)
    results = parse_network_params(plan, input_args)

    results["global_log_level"] = "info"
    results["global_node_selectors"] = {}
    results["global_tolerations"] = []
    results["persistent"] = False

    return struct(
    ...

Current implementation applied default setting for global parameters after parsing network params.
So even after applying global params in network_params.yaml, we cannot get a fair result for these params.