Add an option to skip collect_extra_debug_data()

[jlu5]

I find this way too verbose to be useful. Showing all variables is useful on small functions, but often times the traceback will start printing all variables in a plugin class, which buries the actual exception traceback in hundreds of lines:

Frame load in /opt/limnoria-venv/lib/python3.11/site-packages/supybot/plugins/Owner/plugin.py at line 619
-snip-
                self.__dir__ = <built-in method __dir__ of Owner object at 0x7fc7a52ef150>
                self.__doc__ = 'Owner-only commands for core Supybot. This is a core Supybot module\n    that should not be removed!'
                 self.__eq__ = <method-wrapper '__eq__' of Owner object at 0x7fc7a52ef150>
         self.__firewalled__ = {'isCommand': None, '_callCommand': None}
             self.__format__ = <built-in method __format__ of Owner object at 0x7fc7a52ef150>
                 self.__ge__ = <method-wrapper '__ge__' of Owner object at 0x7fc7a52ef150>
        self.__getattribute__ = <method-wrapper '__getattribute__' of Owner object at 0x7fc7a52ef150>
           self.__getstate__ = <built-in method __getstate__ of Owner object at 0x7fc7a52ef150>
                 self.__gt__ = <method-wrapper '__gt__' of Owner object at 0x7fc7a52ef150>
               self.__hash__ = <method-wrapper '__hash__' of Owner object at 0x7fc7a52ef150>
               self.__init__ = <bound method MetaSynchronized.__new__.<locals>.__init__ of <Owner Owner <Owner.plugin.Owner object at 0x7fc7a52ef150>>>
        self.__init_subclass__ = <built-in method __init_subclass__ of MetaSynchronizedAndFirewalled object at 0x2008bba0>
                 self.__le__ = <method-wrapper '__le__' of Owner object at 0x7fc7a52ef150>
                 self.__lt__ = <method-wrapper '__lt__' of Owner object at 0x7fc7a52ef150>
-snip-
                  self.do422 = <bound method Owner.do376 of <Owner Owner <Owner.plugin.Owner object at 0x7fc7a52ef150>>>
                self.doBatch = <bound method Owner.doBatch of <Owner Owner <Owner.plugin.Owner object at 0x7fc7a52ef150>>>
              self.doPrivmsg = <bound method Owner.doPrivmsg of <Owner Owner <Owner.plugin.Owner object at 0x7fc7a52ef150>>>
            self.echoMessage = False
           self.echo_message = False
                 self.enable = <bound method _wrap.<locals>.newf of <Owner Owner <Owner.plugin.Owner object at 0x7fc7a52ef150>>>
                  self.flush = <bound method _wrap.<locals>.newf of <Owner Owner <Owner.plugin.Owner object at 0x7fc7a52ef150>>>
             self.getCommand = <bound method Commands.getCommand of <Owner Owner <Owner.plugin.Owner object at 0x7fc7a52ef150>>>
         self.getCommandHelp = <bound method Commands.getCommandHelp of <Owner Owner <Owner.plugin.Owner object at 0x7fc7a52ef150>>>
        self.getCommandMethod = <bound method Commands.getCommandMethod of <Owner Owner <Owner.plugin.Owner object at 0x7fc7a52ef150>>>
          self.getPluginHelp = <bound method PluginMixin.getPluginHelp of <Owner Owner <Owner.plugin.Owner object at 0x7fc7a52ef150>>>
               self.inFilter = <bound method firewall.<locals>.m of <Owner Owner <Owner.plugin.Owner object at 0x7fc7a52ef150>>>
               self.ircquote = <bound method _wrap.<locals>.newf of <Owner Owner <Owner.plugin.Owner object at 0x7fc7a52ef150>>>
-snip-

Maybe we can just focus on locals and skip class level variables?

[progval]

class-level variables are useful, that's why I added support for them.

methods are almost always useless though; we can filter them out.