add capability to reload new TLS certificate for HTTPS

As per below, TLS certificate lifetime will be shorten to 47 days eventually in the near future.

https://www.digicert.com/blog/tls-certificate-lifetimes-will-officially-reduce-to-47-days

To reduce the impact by this as much as possible,

we want to configure Spotfire Server to reload the new TLS certificate (replacing existing pfx file placed under <tomcat>\certs) without a service restart.

This can be done by adding a listener to server.xml.

"C:\spotfire\spotfireserver\14.6.0\tomcat\conf\server.xml"

<Server port="9005" shutdown="SHUTDOWN">

<Listener className="com.spotfire.server.tomcat.StartupCheckListener" />
<Listener className="org.apache.catalina.security.TLSCertificateReloadListener" checkPeriod="86400" daysBefore="14" />

Please add this (or better solution) to the product OOTB so end users don't have do it by themselves.