ARQ-1027: Integrate CommandEventBusServlet into WarpFilter
ARQ-1027: Introduce RequestProcessingDelegationService.
WarpFilter can now use delegates for request processing. There is
currently only one available delegate, CommandEventBusService
ARQ-1312: Add javadoc to RequestProcessingDelegationService
ARQ-1312: direct delegated requests through managed request
ARQ-1312: reverting the delegation through managed request
ARQ-1027: introducing RequestDelegator
ftest for Command event @AfterSuite event
ARQ-1319: configured jacoco plugin during ftests