Main: Added API to report actual USB device speed.

USB: Integrate USB sniffer. Make it possible to specify a file to dump the traffic to when attaching a USB device with VBoxManage

Main/USB: Fix darwin assertion on Macbooks with USB 3.0 (Superspeed) ports and devices, introduce new device speed enum value for USB 3.0 devices

6813 - MachineImpl use of server side wrappers + misc mods on other classes

6813 src-client/MachineDebuggerImpl.cpp + various formatting changes

6813 stage 6 - Make use of server side API wrapper code in all interfaces

Main/HostUSBDevice: forgotten lock fix which happens only on platforms which truly grab devices

Main/HostUSBDevice(all platforms)+USBProxyService: redo USB locking, fixes major regression, added lots of assertions to catch locking flaws early, whitespace cleanup Main/Machine: small USB locking fix to be consistent with the remaining code Main/Host+glue/AutoLock: replace USB list lock by host lock, small numbering cleanup Main/Console: redo USB locking, do less in USB callbacks/EMT (addresses long standing todo items), eliminate unsafe iterator parameters

Main/Medium: rework locking scheme to solve lock order violations and long GUI start up time caused by too much locking Main/all: Remove the enter and leave methods from write locks, they cause hard to find locking problems. Better solve them explicitly.

main/usb/win: replug device fix

Main: fixed format specifiers (%ls versus %s)

Main. QT/FE: fix long standing COM issue

Main: source re-org.