Extend the EventCreator tool with the ability to check similar instances

[martivj]

Description

Currently the EventCreator tool allows us to analyze the instance and its events, and re-send events of a specified type regarding that instance. Often times we need to compare against similar instances to see what event could be missing, which can be time consuming (setting up SQL queries and copy pasting parameters around for each instance).

We should integrate the ability to compare with similar instances directly into the tool as a choice in the menu.

Acceptance Criteria

• The menu choice should remember the instance id from a previous "analyze" call to reuse
• The query should take the number of comparison cases as input (the limit)
• We should be able to see if the similar instances have been confirmed or not