Camel outputs sensitive date in logs when log level is set to DEBUG

Issue

• The class org.apache.camel.util.IntrospectionSupport.java logs every property set on a component or an endpoint when the debug log level is turned on, including potential sensitive data.

For example, if you have a simple route like below,

  from("sftp://vgohel@IP_ADDRESS/testCamelDir?password=hello").to("log:myLog?showHeaders=true");

then turning on the DEBUG logging for org.apcahe.camel using log4j.properties or even setting the logger category in pax-logging in Karaf, we are able to see the below lines in the DEBUG logs,

2018-02-22 12:21:53,586 [DEBUG] [main] org.apache.camel.util.IntrospectionSupport - Configured property: password on bean:  with value: hello

The password can be sensitive, hence, we need to some mask or a have a filter to display this information.