v0.3.0

Added

• initlog feature
• UsbDeviceCtx::initialize which initializes logging by default if initlog feature is enabled
• Device::poll which allows calling poll from the test case

Fixed

• Termination condition in Device::ep_raw. Data phase stops when UsbClass does not consume data from the endpoint buffer
• Incorrect internal UsbBusImpl::ep_is_empty condition check

Changed

• Significanlty improved logging
• UsbDeviceCtx::post_poll renamed and changed to UsbDeviceCtx::hook