Reorg config.

[jovany-wang]

• deprecated specifying config per party and also remove the related unit test.
• made all face config API as dict type instead of an internal strong type.
• simplified param address.

[NKcqx]

Should we keep addresses as simple as possible, i.e. addresses = {'alice': str, 'bob': str}, instead of a nested dict.

[jovany-wang]

@NKcqx Then how can we make listening addresses work?

[NKcqx]

@NKcqx Then how can we make listening addresses work?

Since listen_addr is used inside ReceiveProxy, i.e. cross-silo communication, and it's kinda like an advanced config, what do you think we move it to CrossSiloMessageConfig?

[jovany-wang]

Since listen_addr is used inside ReceiveProxy, i.e. cross-silo communication, and it's kinda like an advanced config, what do you think we move it to CrossSiloMessageConfig?

I don't have idea yet. Let's move forward as what you described here.

[jovany-wang]

@fengsp @NKcqx
Let us move listening addresses into cross silo config as a workaround right now.

[fengsp]

@fengsp @NKcqx Let us move listening addresses into cross silo config as a workaround right now.

I believe this is right, since we do not need to config listen_addr for other parties at all

[jovany-wang]

@NKcqx @fengsp @zhouaihui Please help another review.

[fengsp]

LGTM