1. provide prototype and documentation for esmi specific api.
define structures and update classes as required
2. update cmake files as required and add esmi api to the
amdsmi esmi integration example.
Change-Id: I753ec176f9b381e74c9646525dfd9075237bf8d9
Move rocm_smi related function to rocm_smi folder. Move amd_smi to
top level include/ and src/ folder. Remove obsolte oam folder.
Change the CMakeLists.txt to update folder locations.
Change-Id: I52e6be739e49f3b0545865f25364787f5985e9c3