Expanded debug probes

Added

• new probe to examine Spring Boot Jar file/ War file
• new probe to examine Spring Boot expanded Jar
• new probe to examine regular jar file dependencies
• new integration of optional OSHI hardware probe
• new UpContributor mechanism to expand and customize upbanner
• bundled MongoUpContributor to show the current DB in use
• many more integration test modules that demonstrate usage
• added SpringApplicationRunListener to capture name of running app
• added probe to detect Linux cgroup limitations in place for running app
• added probe to show JVM Memory limits in place for running app
• expanded locations to probe for current version of running app
• added docker detection
• added kubernetes detection

Changed

• expanded customization options with WhatsUpBanner interface
• expanded Javadoc
• expanded README.md documentation
• upbanner.show-env setting name changed to upbanner.debug