Refactor: scheduler: Use formatted output for node weights.

This is the allocation score information, which is only output from
crm_simulate for internal use by CTS. There are no outside users.
Because this output is sorted by cts-scheduler, we don't actually want
to do all the formatted output fanciness (" *" will sort before
"Allocation scores", among other problems). So, add more conditionals
to protect against --text-fancy getting added.