Add password rules for member.everbridge.net

[David Kilzer]

Add password rules for member.everbridge.net.

This website hosts accounts for multiple organizations, many of which are used for emergency alert systems.

Alert SCC: https://member.everbridge.net/453003085615038/new
Sacramento Region Emergency Notification System: https://member.everbridge.net/453003085611271/new

However, a pseudo-random sampling from top Duck-Duck-Go search results for "member.everbridge.net login" shows that they all use the same password rules:

https://member.everbridge.net/892807736723690/new
https://member.everbridge.net/453003085617772/new
https://member.everbridge.net/1772417038942730/new
https://member.everbridge.net/453003085611768/new
https://member.everbridge.net/565703027458110/new
https://member.everbridge.net/892807736721501/new
https://member.everbridge.net/index/892807736729003#/signup
https://member.everbridge.net/892807736722469/new