Add support for new Mercury functions
The following functions have been added to Mercury (or never had a margo version) and a margo_ version should be made available:
HG_Bulk_bindHG_Bulk_get_addrHG_Bulk_get_serialize_cached_ptrHG_Bulk_get_serialize_cached_sizeHG_Bulk_set_serialize_cached_ptrHG_Bulk_bind_transferHG_Class_get_nameHG_Class_get_protocolHG_Class_get_input_eager_sizeHG_Class_get_output_eager_sizeHG_Class_set_input_offsetHG_Class_set_output_offsetHG_Class_set_dataHG_Class_get_dataHG_Class_set_handle_create_callbackHG_Context_set_dataHG_Context_get_dataHG_Registered_proc_cbHG_Addr_set_removeHG_Addr_cmpHG_ResetHG_Ref_getHG_Set_dataHG_Get_dataHG_Get_input_bufHG_Get_output_bufHG_Get_input_extra_bufHG_Get_output_extra_bufHG_Cancel
For some of these functions it's a matter of defining a macro. For some other, they have to work on a margo instance instead of an hg_class or an hg_context. And for some, we use them internally in margo and the wrapper should do something slightly different (i.e. HG_Class_set_input_offset should take into account the fact that we are setting an offset ourselves for the breadcrumb).