SWDEV-209060 - Create the Skeleton RDC CLI and daemon

Create the skeleton implementation of rdc_client.so and rdci. Modify current rdcd to
integrate the RDC API service:

rdc.proto is changed to add a new RdcAPI service which defined the interfaces for the RDC API.

RdcStandaloneHandler.cpp is added to send the request using gRPC to the rdcd. It is built into
the rdc_client.so

rdci.cc, RdciDisCoverySubSystem.cc and RdciSubSystem.cc are added to implement skeleton rdci.
Currently, the discovery subsystem is supported.

rdc_api_service.cc is added to the server as a skeleton to implement the RdcAPI service. Currently,
only discovery API is implemented. Note: we disabled the rdc_rsmi_service, which will be removed
in the future. The original rdc_client.so is renamed to rdc_client_smi.so which should also be
removed in the future.

Add the instruction how to run the rdcd and rdci in the build folder in the README.md.

Change-Id: Id232f9f83787e5812d4a295dc8cf0daa7728b06c

client/CMakeLists.txt

@@ -1,15 +1,15 @@
 # Copyright (c) 2019 - present Advanced Micro Devices, Inc. All rights reserved.
-# 
+#
 # Permission is hereby granted, free of charge, to any person obtaining a copy
 # of this software and associated documentation files (the "Software"), to deal
 # in the Software without restriction, including without limitation the rights
 # to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 # copies of the Software, and to permit persons to whom the Software is
 # furnished to do so, subject to the following conditions:
-# 
+#
 # The above copyright notice and this permission notice shall be included in
 # all copies or substantial portions of the Software.
-# 
+#
 # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 # IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 # FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE
@@ -63,7 +63,7 @@ endif()
 # TODO see if we really need this in the end
 include(utils)
 
-set(CLIENT_LIB "rdc_client")
+set(CLIENT_LIB "rdc_client_smi")
 set(RDC "rdc")
 set(CLIENT_LIB_COMPONENT "lib${CLIENT_LIB}")
 set(SRC_DIR "${PROJECT_SOURCE_DIR}/client/src")