Change dumpwallet to use appropriate data directory
Change dumpwallet to use appropriate data directory

by default, with the ability to provide an override to
that in the filespec.

This should also fix the functionality in the debug console.

caraka/gridcoinresearch,theMarix/Gridcoin-Research,gridcoin/Gridcoin-Research,caraka/gridcoinresearch,caraka/gridcoinresearch,theMarix/Gridcoin-Research,caraka/gridcoinresearch,gridcoin/Gridcoin-Research,theMarix/Gridcoin-Research,gridcoin/Gridcoin-Research,theMarix/Gridcoin-Research,Git-Jiro/Gridcoin-Research,gridcoin/Gridcoin-Research,gridcoin/Gridcoin-Research,Git-Jiro/Gridcoin-Research,Git-Jiro/Gridcoin-Research,Git-Jiro/Gridcoin-Research,theMarix/Gridcoin-Research,Git-Jiro/Gridcoin-Research,caraka/gridcoinresearch,theMarix/Gridcoin-Research,gridcoin/Gridcoin-Research,caraka/gridcoinresearch