Extend the C-API to support sycl::event

[diptorupd]

The issue deals with extending the C-API to support sycl::event. The sub-tasks include:

• Add a new function DPCTLEvent_Copy to create a copy of a sycl::event. Look at existing implementation of DPCTLQueue_Copy Add a new DPCTLEvent_Copy function  #504 .
• Add a new function DPCTLEvent_WaitAndThrow(ERef) that wraps sycl::event::wait_and_throw() Add a new DPCTLEvent_WaitAndThrow function  #513
• Add a new function DPCTLEvent_GetBackend(ERef) that will return the back end associated with a sycl::event Add a new DPCTLEvent_GetBackend function #507 .
• Add a new function DPCTLEvent_GetWaitList(ERef) to wrap sycl::event::get_wait_list() returning a vector of events Add a new DPCTLEvent_GetWaitList function #510 .
• Add a new function DPCTLEvent_GetCommandExecutionStatus(ERef) to wrap sycl::event::get_info<sycl::info::event::command_execution_status>() returning an enum class event_command_status : int { submitted, running, complete}. Add a new DPCTLEvent_GetCommandExecutionStatus function #516
• Add wrapper functions for :
  • sycl::event::get_profiling_info<sycl::info::event_profiling::command_submit>()
  • sycl::event::get_profiling_info<sycl::info::event_profiling::command_start>()
  • sycl::event::get_profiling_info<sycl::info::event_profiling::command_end>()
    All these functions will return a uint64_t value of device timer corresponding to the logged time of referenced operations. These are blocking operations (i.e. wait on the event), and throw sycl::invalid_object_code if the queue that created the event did not have profiling enabled. Add 3 new functions for sycl::event::get_profiling_info #519

[oleksandr-pavlyk]

These were merged to dpctl main branch. Resolving.