Registers the tool in SDK.
PRL_RESULT PrlVm_RegisterTool( PRL_HANDLE hVm, PRL_VMCTG_TOOL_DESC_PTR pToolDesc, PRL_HANDLE_PTR phTool );
PrlApiDeprecated.h
When a corresponding part for this tool on vm becomes available, callback function will be called. @param hVm[in] - handle of vm object @param pToolDesc[in] - additional input parameters, see PRL_VMCTG_TOOL_DESC @param phTool[out] - receives handle of registered tool on success, unchanged on failure @return PRL_ERR_SUCCESS, if the tool has been registered. PRL_ERR_FAILURE, if a tool with the same ID is already registered