Moving the InventoryListener out of AbstractServiceInstance and into a common place PipelineOrchestratorImpl

Change-Id: Ic443bfcb160122f9e5e943aa64c36a73034a6c88
Signed-off-by: Madhu Venugopal <mavenugo@gmail.com>
Merge "Moving the InventoryListener out of AbstractServiceInstance and into a common place PipelineOrchestratorImpl"