vnf and vf module replace requests to make

vnf and vf module replace requests to make

Added cloudConfiguration when not sent in replace request
Added robot test for vfModule request with no cloud config
Started adding unit tests for ServiceInstances
Added unit tests for BpmnRequestBuilder changes
Added ServiceInstances tests to test replace without CloudConfig
Removed unused wiremock stubbings from test
Added check for replaceInstanceRetainAssignments action
Added action to common package to fix failing robot tests
Removed new test, updated existing vfModule replace
Added jackson annotations to RequestError object
Fixed failing unit tests apih common

Issue-ID: SO-2523
Signed-off-by: Benjamin, Max (mb388a) <mb388a@att.com>
Change-Id: I9470a0a9c7e356ef98ceb7269e066e79e0afb074