Switched to CmdArgs CLI processing.
Added modes to CLI processing.
Added actuall dbtour options.
Added dir options to command line.
Moved Equity types into independent module.
Moved all actions out of Main and created dispatch table.
Added Cache CLI functions.
Fixed missing call to create non-existent cache dir.
Fixed symbol vs symbol list CLI issue.
Fixed problem with caching all exchanges.
Removed unsed imports.