* initial checkin
* resolve cr comments
* resolve the build issue
* fix the data correctless issue
* update fp8 header file and update the unit test for fp8 support
* remove fp16 from fp8 headers
* fix ut issue and catch up the latest code from develop
* udate according to cr comments
* update ut according to cr comments
* update num floats for each SumPostDiv from 4 to 6
* update fp8 header file name
* fix the typo
[ROCm/rccl commit: 6777e65c1d]
The header files will in /opt/rocm-xxx/include/rccl
Libraries and cmake will be in /opt/rocm-xxx/lib folder.
Added wrappers for header files using rocm-cmake functions for backward compatibility.
[ROCm/rccl commit: 676a4737c1]