Add more testcase for K3b ExternalBinManager

Summary:
1. There are already binObject for cdrecord, growisofs, cdrdao, etc. so
I need to migrate cdrskin binObject;
2. There is already CdrdaoWriter, AudioCueFileWritingJob, etc. to handle
*.cue file format. so Let wodim do the exotic CD stuff and cdrskin do
the rest ;-)

CCBUG: 137436