CLI: `network ls` and `identity ls` should include global networks/identities

[paulbellamy]

What did you do?

Currently:

$ soroban config network ls

What did you expect to see?

Maybe something like this? or some way to indicate they are global

$ soroban config network ls
futurenet (global)
standalone (global)

What did you see instead?

Global networks and identities are excluded. Unless you do soroban config network ls --global, which is confusing because you don't need to pass the --global flag to use the networks/identities.

[willemneal]

And add to this that we should also add an -l option to see the values too.

[stellarsaur]

Related to #1026

[leighmcculloch]

Related to #1026

+1 because of #1026 I think this issue becomes just focused on the network command.