Change to suppressFromDiscovery should lead to updated entry in EntitlementLog

Purpose:

If the suppress from discovery for an entitlement changes because of a change to the suppress from discovery field on:

• An agreement line
• A PCI
• A PTI
• A TI

the change should be advertised in the entitlement log through a new entry with an eventType of "UPDATE" (or similar)

User story statement(s):

As a consumer of the EntitlementLog,
I want to have the suppressFromDiscovery information
so that I can use it appropriately (e.g. in a union catalogue)

Scenarios:

1. Scenario:
   • Given an agreement line
   • When I edit the "suppressFromDiscovery" field for the agreement line
   • Then new entitlementLog entry or entries will be created with eventType of "UPDATE"
2. Scenario:
   • Given an agreement line which leads to an entitlement for a PCI
   • When I edit the "suppressFromDiscovery" field for the PCI 
   • Then a new entitlementLog entry will be created based on that entitlement with eventType of "UPDATE"
3. Scenario:
   • Given an agreement line which leads to an entitlement for a PCI for a TI
   • When I edit the "suppressFromDiscovery" field for the TI 
   • Then a new entitlementLog entry will be created based on that entitlement with eventType of "UPDATE"