refactor VagabondTests; add support for parameterized cluster sizes and configuration
refactor VagabondTests; add support for parameterized cluster sizes and configuration

krontogiannis/MBrace.Azure,palladin/MBrace.Azure,dsyme/MBrace.Azure,dsyme/MBrace.Azure,palladin/MBrace.Azure,mbraceproject/MBrace.Azure,krontogiannis/MBrace.Azure