[ALOY-1173] added bulk copy, move and remove commands

JIRA https://jira.appcelerator.org/browse/ALOY-1173
My expectation when testing this change was that `alloy copy` would copy files even if not all three of the set existed. For example, if there were no TSS file, the XML and JS would still be copied. But that's not the case. Would it be hard to support that type of situation?