Need --waitForDebugGem option

[dalehenrich]

Right now, if you want to take advantage of the topaz debuggem feature, you have to use a custom topazini file and a command line like this:

rowantst/rowanConvTest.solo --upgradeFrom=3.6.4 -- -C "GEM_LISTEN_FOR_DEBUG=TRUE;" -I $GEMSTONE/upgrade/projects/superDoit/gemstone/topazini_solo_debuggem

If we add standard --waitForDebugGem option (no short form) along with --debug and --help we can greatly simplify the use of debuggem ... I've already added support DEBUGGEM when unhandled exceptions occur so that a full stack and the oop of the processs (necessary for looking at the stack when using DEBUGGEM), so this is pretty much a no brainer ...