remote: consolidate typed parameter handling

remote: consolidate typed parameter handling

* src/remote/remote_protocol.x (remote_typed_param_value)
(remote_typed_param):  New types.
(remote_sched_param_value, remote_sched_param)
(remote_blkio_param_value, remote_blkio_param)
(remote_memory_param_value, remote_memory_param): Delete.
(remote_domain_get_scheduler_parameters_ret)
(remote_domain_set_scheduler_parameters_args)
(remote_domain_set_scheduler_parameters_flags_args)
(remote_domain_set_blkio_parameters_args)
(remote_domain_get_blkio_parameters_ret)
(remote_domain_set_memory_parameters_args)
(remote_domain_get_memory_parameters_ret): Update clients.
* src/remote_protocol-structs: Likewise.
* src/remote/remote_driver.c (remoteSerializeTypedParameters)
(remoteDeserializeTypedParameters): New functions.
(remoteDomainSetMemoryParameters)
(remoteDomainGetMemoryParameters, remoteDomainSetBlkioParameters)
(remoteDomainGetBlkioParameters)
(remoteDomainGetSchedulerParameters)
(remoteDomainSetSchedulerParameters)
(remoteDomainSetSchedulerParametersFlags): Update clients.
* daemon/remote.c (remoteSerializeTypedParameters)
(remoteDeserializeTypedParameters): New functions.
(remoteDispatchDomainGetSchedulerParameters)
(remoteDispatchDomainSetSchedulerParameters)
(remoteDispatchDomainSetSchedulerParametersFlags)
(remoteDispatchDomainSetMemoryParameters)
(remoteDispatchDomainGetMemoryParameters)
(remoteDispatchDomainSetBlkioParameters)
(remoteDispatchDomainGetBlkioParameters): Update clients.