[Projects/Dub] Fixed debugging mode didn't work
[Projects] Report an error if a D debuggee/program exit code was not 0
[Projects/Dub] Let the debugger/MD system know about the dub build target properly to let it debug it
[Projects/Dub] Added targetType/Path/Name to DubBuildSettings
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[Projects/Dub] removed old code
[Projects/Dub] Implemented GetOutputFileName for executable targets
[Projects/Dub] Corrected OnGetCanExecute to return false if there's a non-executable built
[Projects/Dub] Corrected GetSourcePaths function