Add information about current Hystrix Configuration to FailedServiceInvocationLogger

[eliaslindholm]

FailedServiceInvocationLogger prints log message each time a bean invocation is aborted by the fault-tolerance layer. Current Message is formatted as follows:

Aborted command execution: cause=SEMAPHORE_REJECTED astrixBean=se.avanzabank.trading.services.AccountServiceAsync hystrixCommandKey=se.avanzabank.trading.services.AccountServiceAsync

To simplify maintainance it would be good to provide the current values of relevant Hystrix configuration depending on the failure cause (SEMAPHORE_REJECTED, THREAD_POOL_REJECTED etc.). For instance:

Aborted command execution: cause=SEMAPHORE_REJECTED astrixBean=se.avanzabank.trading.services.AccountServiceAsync hystrixCommandKey=se.avanzabank.trading.services.AccountServiceAsync current configuration: MAX_CONCURRENT_REQUESTS=10