builder/virtualbox: move to iso/ folder
builder/virtualbox/iso: rename package
plugin/builder-virtualbox: new package
builder/virtualbox: add common package, common Artifact
builder/virtualbox/common: Move Driver here
builder/virtualbox/common: StepOutputDir
builder/virtualbox/common: StepSuppressMessages
builder/virtualbox/common: move outputdir config to common
builder/virtualbox: floppy files config
builder/virtualbox: step attach floppy
builder/virtualbox: generic SSHConfig
builder/virtualbox: StepVBoxmanage
builder/virtualbox: StepShutdown
builder/virtualbox: StepShutdown tests
builder/virtualbox/common: StepRemoveDevices
builder/virtualbox: StepRun common
builder/virtualbox/common: Export
builder/virtualbox: StepUploadVersion
builder/virtualbox: tests for StepUploadVerison
builder/virtualbox: set Tpl on VBoxManage