Additional debug loggers ?

[Tom Zeller]

Polling for objections to me adding two additional disabled-by-default
loggers in conf/logback.xml to control debug logging as a result of
IDP-569 and IDP-575.

In other words, if this is bad or you don't like it, please let me
know. It's kind of a trend.

<!-- Logs inbound and outbound protocols messages at DEBUG level -->
<logger name="PROTOCOL_MESSAGE" level="DEBUG" />

<!-- Logs unencrypted SAML at DEBUG level -->
<logger name="SAML_PRE_ENCRYPTION" level="DEBUG" />

<!-- Logs standard system properties during startup at DEBUG level -->
<logger name="STARTUP_PROPERTIES" level="DEBUG" />