Make service domains: brokers to load other brokers

[ioncreature]

To be able make monorepo with all domains and its services ))
It could be nice to share singletons such as statistics, caches, bus connections

coreBroker
|-> coreAction1
|-> ...
|-> coreActionN
|
|-> coreService1
|-> ...
|-> coreServiceN
|
|-> domain1Broker
    |-> domain1Service1
    |-> ...
    |-> domain1ServiceN
|
|-> domain2Broker
    |-> domain2Service1
    |-> ...
    |-> domain2ServiceN

It could be useful if

Questions:

• How to load dependencies?
• How to build such code?
• How to deploy such code?
• Can brokers have any restrictions to higher-level actions/singletons/plugins?
• How to configure such services?