Updated Feature: Updates to Status Summary Export

IREx helps manage Letters of Indemnification (LOIs) for institutions that require them when serving as the sIRB. On a given study, the sIRB can track whether or not a site has signed their LOI on the Status Summary tab and the Status Summary Export. Now, the Status Summary export will also include the date participating sites signed the LOI. Additionally, the Status Summary export has been updated so that the date of initial approval is always included. The export still includes the most recent approval date, if there are approvals beyond the initial approval.