Add created_date column to the civicrm_note table
Overview
After merging contacts, we noticed that when viewing the notes of the merged contact, the notes merged from the duplicated contact display the timestamp of when the merge happened. It would be helpful for note records to store both the created date and the last modified date and to display both dates in the notes list view at /civicrm/contact/view?reset=1&cid=xxxxxx
Example use-case
The user wants to see the date that a note was created in addition to when a note was last modified.
Current behaviour
Currently the civicrm_note table has only a modified_date field so the date a note is created is lost upon any update.
Proposed behaviour
Add a created_date column to the civicrm_note table and display both created and modified dates at /civicrm/contact/view?reset=1&cid=xxxxxx