Furthered cygwin support in bf_test.sh. Auto links non-default linker in configure stage
Furthered cygwin support in bf_test.sh. Auto links non-default linker in configure stage

RicoAntonioFelix/hypervisor,rianquinn/hypervisor,connojd/hypervisor,RicoAntonioFelix/hypervisor,RicoAntonioFelix/hypervisor,rianquinn/hypervisor,rianquinn/hypervisor,Bareflank/hypervisor,Bareflank/hypervisor,connojd/hypervisor,Bareflank/hypervisor,connojd/hypervisor