Nonces for Aliases

[JoshuaUrrutia]

I think we need a separate command to generate nonces against aliases. For example:

abaco nonces create nonce_test

would generate this curl call (I think):

curl -sk -H "Authorization: Bearer $TOKEN" -d "maxUses=-1&level=EXECUTE" https://api.sd2e.org/actors/v2/nonce_test/nonces

However this will actually resolve to an actor ID, and the resulting nonce will not work with an alias. See Joe's comment here:
https://tacc-team.slack.com/archives/C8QCFPLBW/p1572611242102700

To generate a nonce against an alias, we need to use the alias endpoint:

curl -sk -H "Authorization: Bearer $TOKEN" -d "maxUses=-1&level=EXECUTE" https://api.sd2e.org/actors/v2/aliases/nonce_test/nonces

So I think we'd need a separate CLI command abaco aliases nonces create maybe?