Fix Boot Node / Child Node mess

[tatmanblue]

The design was that boot node and child nodes are the same service just configured to run as either. For the most part this is true.

The mess lies in the types consumed in the service, and particularly with the event pub/sub system and the ledger system(s).

Not sure what the best approach is to correct these. Refactoring around injection, interfaces and maybe implement a strategy pattern or something similar.

Note: this issue is mostly another one of these issues that will be fixed over time as other work is completed.

[tatmanblue]

Some of this can be cleared up by

1. making IServiceProvider parameter on functions
2. using Factory Providers for LedgerIndex etc...

[tatmanblue]

It maybe possible that LedgerManager and ClientLedgerManager can split out from inheritance tree (unless theres an abstract layer)