Provide Implementation for the Evidence Activation Hook

A new hook is provided to determine the automation strategy of activating the evidences. EvidenceActivation interface must be implemented if the customer wishes to determine how the evidence was activated.On customizing the strategy (for example, CustomEvidenceActivationImpl) for a specific case type, it is necessary to bind the strategy with the case type. This can be done by creating a Guice module class or adding a corresponding entry in the MODULE table..