be able to list the system and boot jars that were added to the classpath

Submit API and its cmd line interface allows a user to add jars to the byteman agent's system or boot classpath.

We should allow a user to list the jars that have been previously added via that mechanism.

This means:

a) the transport listener needs to accept commands LISTSYS and LISTBOOT and output the jars that were added previously via SYS and BOOT
b) have the Submit API provide a way to return a list of full paths of all added system and boot classpath jars
c) have the Submit cmd line utliity accept a "-c" option to list both system and boot classpath jars that were added