Function sync

src/backend/oneapi/platform.cpp:414–419

}

void sync(int device) {
    int currDevice = getActiveDeviceId();
    setDevice(device);
    getQueue().wait();
    setDevice(currDevice);
}

void addDeviceContext(sycl::device& dev, sycl::context& ctx, sycl::queue& que) {
    DeviceManager& devMngr = DeviceManager::getInstance();